Answer:
#1. -6/7
#2. -3.2
Step-by-step explanation:
#1. (-2/7) + (-4/7)
You are adding two negative numbers.
When you add two positive numbers or two negative numbers, just ignore the signs and add the numbers as positive numbers. Then the answer has the same sign as the original numbers.
Step 1. Ignore the signs and make both numbers positive.
Add 2/7 and 4/7.
2/7 + 4/7 = 6/7
Step 2. Since the two numbers are originally negative, the answer is negative.
(-2/7) + (-4/7) = -6/7
#2. 5.4 + (-8.6)
When you add a positive number and a negative number, first make both numbers positive. Then, subtract the smaller positive number from the larger positive number. Finally, the answer has the same sign as the original number that corresponds to the larger positive number.
Here we do it step by step.
5.4 + (-8.6)
Step 1. Make both numbers positive. The numbers now are:
5.4 and 8.6
Step 2. Subtract the smaller positive number from the larger positive number.
8.6 - 5.4 = 3.2
Now look at the two positive numbers. 5.4 and 8.6. The larger number is 8.6. The original number that 8.6 came from is -8.6, a negative number, so the answer is negative.
5.4 + (-8.6) = -3.2
All the gummy machines at a candy factory work at the same rate. Six machines working simultaneously can complete a big order in 22 hours. How many hours would it take to fill the order if the number of working machines decreased by a factor of 2 ?
It will take 88 hours to fill the order if the number of machines is; deceased by a factor of 4.
What is the fundamental principle of multiplication?Multiplication is the mathematical operation that is used to determine the product of two or more numbers. If an event can occur in m different ways and if following it, a second event can occur in n different ways, then the two events in succession can occur in m × n different ways.
Given that Six machines working simultaneously can complete a big order in 22 hours.
Since we are decreasing the number of machines by a factor of four and all the machines work at the same rate, then we simply going to increase the work hours by a factor of 4.
Therefore Increasing the work hours by a factor of 4 will
22 x 4 = 88 hours
Hence it will take 88 hours to fill the order if the number of machines is deceased by a factor of 4.
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Answer:
44
Step-by-step explanation:
guys lat asnwer was correct too but she just did 4 instead of 2 so just divided her answer by 2 which sums up to 44
how many groups of 3/4 are in 1
Answer:
one and a third thats the amount of groups (mark me brainliest pls and ty <3) !
Question
DIG DEEPER A group of friends visits a movie theater.
A menu of Royal Cinemas shows cost of tickets and refreshments. The cost of daytime and evening tickets are 5 dollars and 7.50 dollars respectively. The cost of small, medium, and large drinks are 1.75 dollars, 2.75 dollars, and 3.50 dollars respectively. The cost of small and large popcorns are 3 dollars and 4 dollars respectively.
Each person buys a daytime ticket and a small drink. The group shares 2 large popcorn. What is the average cost per person when there are 4 people in the group?
The average cost per person when there are 4 people in the group is of:
$8.75.
How to obtain the average cost per person?The average cost per person represents the mean cost per person in the data-set.
The mean of a data-set is given by the sum of all observations in the data-set divided by the number of observations.
Hence, the average cost per person in this problem is obtained as the division of the total spending by four, as there are four people.
The total spending is obtained as follows:
Four daytime tickets -> 4 tickets of 5 dollars.Four small drinks -> 4 drinks of 1.75 dollars.Two large popcorns -> 2 popcorns of 4 dollars.Hence the numeric value of the total spending is of:
4 x (5 + 1.75) + 2 x 4 = $35.
Thus the average spending per person is of:
$35/4 = $8.75.
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7. Sale price of ear-pads after getting 20% discount is Rs 1600. Then the amount of disccount will be A) 400 C) 1620 B) 2000 D) 3200
Answer: B) 2000
Step-by-step explanation:
Sale Price: The cost following a discount applied to the initial cost.
Cost Price: The cost price is what we pay to purchase a good.
Discount Price : A price that is lower than the usual price.
Cost price equals selling price plus revenue ( when selling price and profit is given ) Cost is equal to Selling price plus Loss ( when selling price and loss is given ).
So, The sale price is Rs 1600 after discount.
Discount =20%
Selling price of the skates = Rs 1600
Discount price = 100/80 × 1600= Rs 2000
Discount price = Rs 2000
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The manufacturer's suggested retail price (MSRP) for a particular car is $25020, and it is expected to be worth $14212 in 4 years.
a) Find a linear depreciation function for this car.
(b) Estimate the value of the car 5 years from now.
(c) At what rate is the car depreciating?
The linear depreciation function is: Depreciation = [tex]\frac{Cost-scrap value}{Estimated life span}[/tex], (b) the value after five years is $11510 and (c) rate of depreciation is 11%
How to calculate depreciation?We should know that depreciation is a loss on a fixed asset over the accounting period that benefited from it.
The given parameters are
Cost of the asset (MSRP)= $25020
Scrap value = $14212
Estimated life span = 4 years
a. Applying the depreciation model
Deprecation = [tex]\frac{Cost of asset - scrap value}{estimated life span}[/tex]
Depreciation = [tex]\frac{25020-14212}{4}[/tex]
depreciation = 10808/4
Dep. = $2702
(b) Note that the accumulated depreciation after 5 years is 2702*5
=$13510
The value of the car after 5 years is $(25020-13510)
=$11510
(c) The rate of depreciation is determined by the model
% dep. = 1-[tex]\sqrt[n]{\frac{s}{c} }[/tex]
where n= number of years
s=scrap value
c cost of the asset
Applying the formular we have
% dep - 1-[tex]\sqrt[5]{\frac{14212}{25020} } = 1-\sqrt[5]{0.5680}[/tex]
% dep= 1-0.89
=0.11*100
=11%
In conclusion, the linear depreciation function is (Cost - Scrap value)÷Number of years, the value of the car 5 years from now is $11510 and the rate of depreciation is 11%
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After walking 1/4. Mile from home, han is 1/3
The miles that Han will need to get to school is 2/3 miles
What is fraction?A fraction is simply a piece of a whole. The number is represented mathematically as a quotient where the numerator and denominator are split. In a simple fraction, the numerator as well as the denominator are both integers. On the other hand, a fraction appears in
From the information, after walking 1/4 mile from home, Han is 1/3 miles to the school.
The miles that she will need more to get to school will be:
= 1/3 × 2
= 2/3
The miles is 2/3 miles.
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Complete question
After walking 1/4 mile from home, han is 1/3 miles to the school. How many miles more will he need to get to school.
Malcolm calculated how many liters of milk each team would get if 6 teams shared the milk equally. His work is shown above, but he forgot to place the decimal point in the quotient.Where should he place the decimal point? Use number sense to explain
Malcolm should place the decimal point immediately after one (1) or before three (3) as follows: 8.25/6 = 1.375.
What is a quotient?In Mathematics, a quotient can be defined as a mathematical expression that is simply used to represent the division of a number by another number.
As a general rule, the smaller the divisor (denominator) of a mathematical expression, the larger would be the quotient. This ultimately implies that, a quotient would be large when the divisor (denominator) of a mathematical expression is small.
On the other hand (conversely), a quotient would be small when the divisor (denominator) of a mathematical expression is large.
Based on Malcom's calculations, he forgot to place the decimal point in the following expression;
8.25/6 = 1375
Next, we would determine the maximum value of this quotient;
8.25/6 = 12/6
8.25/6 = 2
Therefore, the whole number part for this decimal number would be one (1) and as such, the decimal point must be placed immediately after 1 as follows;
8.25/6 = 1.375
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Complete Question;
Malcolm calculated how many liters of milk each team would get if 6 teams shared the milk equally. His work is shown above, but he forgot to place the decimal point in the quotient. Where should he place the decimal point? Use number sense to explain.
8.25/6 = 1375
A restaurant offers 4 main courses, 3 desserts, and 5 types of juices. What is the total number of items on the menu? 3 12 9 7
Answer:
749
Step-by-step explanation:
Graph the solution to this inequality on the number line.
−18≤−3p
The solution of the inequality expression −18≤−3p is p ≤ 6.
What is inequality?Inequality, A declaration of an order connection between two integers or algebraic expressions (greater than, greater than or equal to, less than, or less than or equal to).
Hence, to solve for −18≤−3p, let's make P the subject of the formula.
-3p ≥ -18
Using -3, divide both sides
⇒ -3p/-3 ≥ -18/ -3
Hence,
⇒ P ≤ 6
See the graph attached.
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Help please quick!!!!!!
first one
2x+43 = 180
.....
A. The result is a repeated number.
The event is { }
(Use a comma to separate answers as needed. Type an ordered pair.)
The probability is [ ]
(Type an integer or a simplified fraction.)
B. The second number is 9 or 11.
The event is { }
(Use a comma to separate answers as needed. Type an ordered pair.)
The probability is [ ]
(Type an integer or a simplified fraction.)
C. The first number is even and the second number is odd.
The event is { }
(Use a comma to separate answers as needed. Type an ordered pair.)
The probability is [ ]
(Type an integer or a simplified fraction.)
Answer:
Answer:
A. The event is (2,2), (4,4), (6,6), (8,8), (10,10), (12,12) and the probability is 1/6.
B. The event is (2,9), (2,11), (4,9), (4,11), (6,9), (6,11), (8,9), (8,11), (10,9), (10,11), (12,9), (12,11) and the probability is 2/6.
C. The event is (2,9), (2,11), (4,9), (4,11), (6,11), (8,9), (8,11), (10,9), (10,11), (12,9), (12,11) and the probability is 5/6.
toooooooooooo ezzzzzzzzzzyyyty
Step-by-step explanation:
HELP please This is a missing assignment know
Answer: -4.25
Step-by-step explanation:
subtract -6.75 from 2.5 and you have your answer. This works out because 2.5 and -2.5 cancel out and become 0.
Graph the solution to this inequality on the number line. −18 ≤−3p
The solution to the inequality −18 ≤−3p, is shown in the graph in the attachment which is p ≤ 6.
How to Graph the Solution to an Inequality?To graph the solution of a given inequality, we have to first solve the inequality to determine what the solution will be.
Given the inequality, -18 ≤ -3p, solve to find p:
-18 ≤ -3p
Divide both sides by -3
-18/-3 ≥ -3p/-3 [the sign will change because we're dividing by a negative value]
6 ≥ p
It can be rewritten as p ≤ 6. The graph of this solution is a number line having a closed circle on point 6 that points towards the left.
See the diagram in the attachment which shows the solution of the inequality.
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The current yield on stock invested in Lynx Corporation is 4.2%. The dividend last year was $3.25 per share. What was the selling price of the stock?
Answer:
Step-by-step explanation:
77.38$
Evaluate the expression -10x(-7)
Answer:
70x
Step-by-step explanation:
multiply -10 and -7 for the coefficient
Answer: 70x
Step-by-step explanation:
Five proportions are given below Put a check mark next to the proportions Jay could use to solve the problem "What is 36% of 150
x/150 = 36/100
150/x = 36/100
36/x = 15/10
x/38 = 150/100
36/150 = x/100
The required proportion for the given case is 36/100 = x/150.
What is percentage?A percentage is a value that indicates 100th part of any quantity.
A percentage can be converted into a fraction or a decimal by dividing it by 100.
The given statement is as below,
36% of 150
Suppose the required number is x.
Then, the equivalent form of the given statement is,
36% of 150 = x
=> 36% × 150 = x
=> 36/100 × 150 = x
=> 36/100 = x/150
Hence, the required proportion to to be used to solve the problem is 36/100 = x/150.
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Lexi is creating beaded jewelry to give to her family and friends. For her family, she assembled 5 bracelets and 9 necklaces, using a total of 922 beads. For her friends, she assembled 9 bracelets and 5 necklaces, using a total of 786 beads. Assuming she uses a consistent number of beads for every bracelet and necklace, how many beads is she using for each?
The number of Lexi is using for every bracelet and necklace include the following:
For her bracelet =329
For her necklace= 593
What is addition?Addition is defined as one of the arithmetic parameters that can be used to combine various data together to arrive at a particular value.
For the family,
bracelet = 5
necklace = 9
Total jewelry made = 14
total number of beads used = 922 beads
The number of beads used for bracelet;
= 5/14×922
= 4610/14
= 329
The number of beads used for necklace;
= 9/14× 922
= 8298/14
=593
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What is 18 1/2 + 6.6 ?
Answer:
25.1 i think
Step-by-step explanation:
Answer:
25.1
Step-by-step explanation:
Conversion a mixed number 18 1/2 to an improper fraction: 18 1/2 = 18 1/
2= 18 · 2 + 1/2= 36 + 1/2 = 37/2 2. a) Multiply the whole number 18 by the denominator 2. Whole number 18 equally 18 * 2/2 = 36/2 Conversion a decimal number to a fraction: 6.6 = 66/10 = 33/5
Find the measure of the supplement of a 10° angle.
Answer:
170°
Step-by-step explanation:
180 - 10 = 170
Problem Situation:
Eric is adding water to a 60-gallons pool.
The pool already has 12 gallons of water, and he wants to fill it to at least 27 gallons. The water flows at a rate of 6 gallons per minute.
How many minutes, x, will it take for Eric to fill the pool with at least 27 gallons of water?
Inequality that represents this situation:
27≤12+6x
To solve the inequality, you can begin by solving the equation as shown.
Drag a diagram to each row of the table to show which number line represents all of the solutions for the inequality and which number line represents all of the solutions for the problem situation.
The number line which represents all of the solutions for the problem situation is Number line A.
How to solve an inequality?Volume of the pool = 60-gallonsWater in the pool already = 12 gallonsWater left to fill the pool = 27 gallonsWater flow per minute = 6 gallonsNumber of minutes it takes to fill the pool = xThe inequality:
27 ≤ 12 + 6x
substract 12 from both sides
27 - 12 ≤ 6x
15 ≤ 6x
divide both sides by 6
x ≤ 15/6
x ≤ 2.5 minutes
Therefore, the given inequality has the solution x ≤ 2.5 minutes.
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What is the missing number?
10-4 = 9-
Answer:
Step-by-step explanation:
10-4=6
9-(x)=6
9-6=(x)
(x) = 3
The answer is 3
Answer:
Missing number = 3
Step-by-step explanation:
Forming the equation,
→ 10 - 4 = 9 - x
→ x = missing number
Now the value of x will be,
→ 10 - 4 = 9 - x
→ 6 = 9 - x
→ -x = 6 - 9
→ -x = -3
→ [ x = 3 ]
Hence, the value of x is 3.
If a fair die is rolled 5 times, what is the probability, to the nearest thousandth, of getting exactly 0 sixes?
Answer:
below
Step-by-step explanation:
5/6 th chance of NOT rolling a six EACH time (five rolls)
(5/6)^5 = .402
What is the approximate value of 27)976?
Answer:
26352
Step-by-step explanation:
Answer: 36.1481481481. So approximately 36.1
Step-by-step explanation:
Would you rather........
have your boss pay
you $10,000 a day
for 3 full weeks
including weekends
or
start working with a savings
account with a quarter in it
and your boss double it each
day you work for 3 full weeks
7
the answer
1. Before working, discuss, make a guess and tell us why you'd rather. Be sure to state you reasons for your
choice.
2. Find out how much you would be making after working 7 days in both scenarios,
3. Find out how much you would be making after working 14 days in both scenarios.
S make sure you have
-a title
-your original choice
-an equation for both scenarios
-a graph
-a full table showing from the first day to the end of 3 weeks (day 21)
-picture and/or written explanations of your findings (what surprised you and how were they
ell us how much money you would be making in each scenario at 7 days and 14 days
1) I would choose option 2 because I will get more money.
What is a quarter ?
Any one of four identical or nearly identical portions of an item, quantity, amount, etc. Also known as one fourth. the number (1/4) is one divided by four.
I would choose option 2, and I did so because I believe that doubling the amount every day for three weeks will give me more money, even if it starts with a quarter, than option 1, which would give me a bonus of $10,000 and $10,000 per day for three weeks.
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8x - 3y = 12
-8x+3y=5.
Answer:
No solution
Step-by-step explanation:
Given :
8x - 3y = 12-8x + 3y = 5Because we have two variables that can cancel out, we can solve the system using elimination as we can easily add the two equations, cancel out one of the variables and solve for the other.
8x - 3y = 12
+ -8x + 3y = 5
-----------------------
0x + 0y = 17
Simplifying this we are left with 0 = 17
Because no variables can be defined there are no solutions to the equation.
Explain how to do x+7>4
[tex]x > -3[/tex].
Step-by-step explanation:1. Write the expression.[tex]x+7 > 4[/tex]
2. Subtract 7 from both sides of the inequality.[tex]x+7-7 > 4-7\\ \\x > -3[/tex]
3. Express the final result.[tex]x > -3[/tex].
A class measured the radius and circumference of various circular objects. Does there appear to be a proportional relationship between the radius and circumference of a circle explain or show ur reasoning.
The required given relationship between the radius and circumference of the circle is not a proportional relationship.
Given that,
A class measured the radius and circumference of various circular objects.
proportionality is defined as between two or more sets of values, and how these values are related to each other in the sense are they directly proportional or inversely proportional to each other.
here
For the proportional relationship,
the ratio of y / x should be equal but,
18 / 3 ≠ 25/4
Which implies that the relationship is not proportional.
Thus, the required given relationship of the radius and circumference of the circle is not a proportional relationship.
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10 points! What is the greatest common factor of 32 and 40? * 1 point
2
4
8
16
I have to explain also!
Answer:
8
Step-by-step explanation:
Question:
What is the greatest common factor of 32 and 40?
Find the factors of 32 and 40:
The factors are all the numbers the we can divide 32 or 40 by, and the result will be a whole number. Example:32/1= 32, 32/2= 16, yet 32/3 = 10.6 not a whole number so 3 is not a factor of 32.
Factors of 32: 1, 2, 4, 8, 16, 32
Factors of 40: 1, 2, 4, 5, 8, 10, 20, 40
Find the greatest factor that is common for both 32 and 40 ( the GCF):
Factors of 32: 1, 2, 4, 8, 16, 32
Factors of 40: 1, 2, 4, 5, 8, 10, 20, 40
GCF is 8
two pounds of flour cost 1.20 .How much flour do you get per dollar?
1.67 pounds flour we get per dollar.
What does pounds mean in weight?Pound, avoirdupois weight unit equivalent to 16 ounces, 7,000 grains, or 0.45359237 kg, and troy and apothecaries' weight unit equal to 12 ounces, 5,760 grains, or 0.3732417216 kg The symbol lb comes from the Roman predecessor of the contemporary pound, the libra.
Given,
Cost for 2 pounds of flour = $ 1.20
Cost per pound of flour = $ 1.20 /2
= $ 0.20
Now for 2 dollar we get flour = 2 pounds.
for 1 dollar we will get flour = 2/1.20 pounds
= 1.6666 pounds
i.e. for 1 dollar we will get flour = 1.67 pounds.
So, 1.67 pounds flour we get per dollar.
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. Model with Math Dani's neighbors paid
her to take care of their bird during their
vacation. Dani spent $4 of her earnings on
an afternoon snack and $16 on a new book.
Afterward, she had at least $8 left. Write
an inequality to represent how much Dani's
neighbors paid her.
Answer:
x-4-16≥8
x≥28
Step-by-step explanation:
If you use x to begin with the unknown payment. then take away what you know was spent ($4,$16) and you have at least $8 left, x would have to be greater than or equal to 28