Answer: -2
Step-by-step explanation:
Subtract 13 on both sides
-7x = 14
Divide by -7 on both sides
x = -2
AM I RIGHT? I will mark BRAINLIEST
Answer:
3
Step-by-step explanation:
The scale factor is actually 3 broski
Answer:
no, its 1/3!!
Step-by-step explanation:
27 x 1/3 = 9
21 x 1/3 = 7
anyone help with this question please..
Answer:
x>3
Step-by-step explanation:
then reason is x is the black bold line and x the line is larger than 3 so the equation is x>3
pls brainliest
Answer:
x>3
Step-by-step explanation:
i believe thats it i just learned that
Answer please don't put wrong answer. 30 points.
it would be D y=2x +2
Write the equation of a perpendicular bisector of the line segment having
endpoints A(-1, -3) and B(5,5).
when multiplying or dividing by a negative coefficient, you must flip the sign.
•True
or
•False
Answer:
I think the answer is True!
Step-by-step explanation:
Hope this helps
Answer:
true
Step-by-step explanation:
a negative times a negative is a positive same with dividing a negative by a negative
a positive times a negative is also negative
how do i solve this step by step??
Can someone help me, please???
Answer:
12
Step-by-step explanation:
4 times 3 = 12
Find the missing value
Answer:i think it would be 349
Step-by-step explanation:
Add the 3 numbers that you know.
Multiply the mean of 73 by 5 (numbers you have).
Add the numbers you are given.
Subtract the sum you have from the total sum to find your missing number.
An experiment consists of first rolling a die and then tossing a coin. (a) List the sample space. {(3, H), (4, H)} {(1, T), (2, T), (3, T), (4, T), (5, T), (6, T)} {(1, H), (1, T), (2, H), (2, T), (3, H), (3, T), (4, H), (4, T), (5, H), (5, T), (6, H), (6, T)} {(3, H), (3, T), (4, H), (4, T)} {(1, H), (2, H), (3, H), (4, H), (5, H), (6, H)} (b) Let A be the event that either a three or a four is rolled first, followed by landing a head on the coin toss. Find P(A). (Enter your probability as a fraction.)
Answer:
(a)
[tex]S = \{(1,H),(2,H),(3,H),(4,H),(5,H),(6,H),(1,T),(2,T),(3,T),(4,T),(5,T),(6,T)\}[/tex]
(b)
[tex]P(A) = \frac{1}{6}[/tex]
Step-by-step explanation:
Given
The above sample space
A = Event of an occurrence of 3 or 4 then a head
(a): List out the sample space:
The rolls of the dice come first, followed by the toss of the coin.
So, the sample space are:
[tex]S = \{(1,H),(2,H),(3,H),(4,H),(5,H),(6,H),(1,T),(2,T),(3,T),(4,T),(5,T),(6,T)\}[/tex]
The number of the sample space is:
[tex]n(S) = 12[/tex]
(b): Find P(A)
First, we list out the outcomes of event A
[tex]A = \{(3,H),(4,H)\}[/tex]
The number of outcome is:
[tex]n(A) = 2[/tex]
The probability of A is then calculated as:
[tex]P(A) = \frac{n(A)}{n(S)}[/tex]
[tex]P(A) = \frac{2}{12}[/tex]
Simplify fraction
[tex]P(A) = \frac{1}{6}[/tex]
Rob Is saving to buy a new MP3 player. For every $15 he earns babysitting, he saves $5. On Saturday, Rob
earned $60 babysitting. How much money did he save?
he eamed $60, he saved $
Answer:
20 dollars
Step-by-step explanation:
Graduated containers are used to measure ingredients by weight. true or false
Answer:
false
Step-by-step explanation:
they are used to measure mL / L
For Khloe's lemonade recipe, 8 lemons are required to make 10 cups of lemonade. How many lemons for 30 cups of lemonade?
Answer: 24 lemons
Step-by-step explanation: Good luck! :D
8 lemons - 10 cups
16 lemons - 20 cups
24 lemons - 30 cups
Answer: 24
Step-by-step explanation: all I did was multiple 8 times 3 because ten was multiple by 3
Help me quick gotta get a 100% before 12
Answer:
A,
B
Step-by-step explanation:
If it's a 15 dollar variable fee and a flat 10 our equation looks like this
15c+10
which is the same as A
Now that we know the equation we can just plug a couple of numbers in
when c=3 what is h
15(3)+10=
55
THerefore the answer is B
Answer:
13) A
14) B
Step-by-step explanation:
For number 13 the answer is A because it says he gets charged 15 dollars per hours PLUS the 10 doller traveling fee. So basically: 15 charge + 10 travel fee = hour.
Now for number 14 we know the answer just from the first part. If its three hours then we need to multiply 15 dollars by 3 because like they said, he charges 15 dollars PER HOUR. 15 times 3 equals 45. But thats not all. We need to add 10 dollars to that because of the travel fee. 45 plus 10 equals 55. And the only table that shows 55 dollars is B so we already know the answer without doing the rest.
Arondae is making cookies. She needs 10
cups of sugar per pan. If she wants to make
50 pans of cookies, how many cups of sugar
does she need?
Answer:
500
Step-by-step explanation:
10*50=500
A number is greater than 8. The same number is less than 10. The inequalities x > 8 and x <10 represent the situation.
Which best explains the number of possible solutions to the inequality?
There is one solution because 9 is the only number between 8 and 10.
There are a three solutions because 8, 9, and 10 are possible solutions.
There are a few solutions because there are some fractions and decimals between 8 and 10.
There are infinite solutions because there is always another number between any two numbers.
Answer:
There are infinite solutions because there is always another number between any two numbers.
Step-by-step explanation:
The Wellbuilt Company produces two types of wood chippers, economy and deluxe. The deluxe model requires 3 hours to assemble and 1/2 hour to paint, and the economy model requires 2 hours to assemble and 1 hour to paint. The maximum number of assembly hours available is 30 per day, and the maximum number of painting hours available is 9 per day. (a) Write the system of inequalities that describes the constraints on the number of each type of wood chipper produced. (Let x represent the number of deluxe models, and let y represent the number of economy models.)
Answer:
3x + 2y ≤ 30
0.5x + y ≤ 9
Step-by-step explanation:
Number of deluxe model = x
Number of economy models = y
Assembly hours :
Maximum hours = 30
Deluxe model = 3 hours
Economy model = 2 hours
3x + 2y ≤ 30
Painting :
Maximum hours = 9
Deluxe model = 1/2 = 0.5 hours
Economy model = 1 hours
0.5x + y ≤ 9
Therefore the inequality constraints are:
3x + 2y ≤ 30
0.5x + y ≤ 9
The lunch lady has 12 pounds of lasgana. If she makes 1/3 pounds servings using this amount of lasgana, how many servings can she make?
Answer:
Step-by-step explanation:
I think it’s 36 servings, but I am not sure
divide 49 ÷ 8 = and show your work
Answer:
6
Step-by-step explanation:
Place this digit in the quotient on top of the division symbol. Multiply the newest quotient digit (6) by the divisor 8 . Subtract 48 from 48 . The result of division of 48÷8 48 ÷ 8 is 6
The required, 49 divided by 8 gives 6 as the quotient and 1 as the remainder.
To divide 49 by 8, you can use long division to find the quotient.
Determine how many times the divisor (8) can fit into the new number (49). In this case, 8 goes into 49 six times. Subtract the result (48) from the number you brought down (49). 49 - 48 = 1. Write the result (1) below the line.
6
_______
8 | 49
- 48 (8 times 6)
______
1 (Remaining 1 after subtracting)
Therefore, 49 divided by 8 gives 6 as the quotient and 1 as the remainder.
Learn more about divide here:
https://brainly.com/question/31677548
#SPJ6
I really really need help with this! I will give brainliest! It is a 3 part question, but i really need help with it.
The graphs of y=p(x) and y=q(x) are shown. The graph of y=q(x) is a transformation of the graph of y=p(x).
a. Write a formula for the function p.
b. Describe how the graph of y=q(x) can be obtained from the graph of y=p(x).
c. Write a formula for the function q.
Answer:
Step-by-step explanation:
The function p is an absolute value equation p(x)=|x| or it could be described as the sqare root of x squared.
q(x) could be the negative of p(x) raised by two units
q(x)=-|x|+2
What is sales tax and explain how we use it in everyday life.
1-5 sentences plz
Answer: Look below. I hope this helps=3
Step-by-step explanation: Sales tax is an additional amount of money you pay. based on a percentage of the selling price of goods. Also services that are purchased. For example, if you purchase a new television for $400 and live in an area where the sales tax is 7%. Then you would pay $28 in sales tax.
2) The sum of 5x and 2x is at least 14
A.
5x + 2x > 14
B.
5x + 2x < 14
C.
5x + 2x ≤ 14
D.
5x + 2x ≥ 14
Answer:
b
Step-by-step explanation:
if it is less than 14 then the big side of the arrow would be facing the 14
Answer:
Step-by-step explanation:
5x + 2x > 14= x>2
5x + 2x < 14= x<2
5x + 2x ≤ 14= x≤2
5x + 2x ≥ 14= x≥2
What would the economic situation of the country be if its income from overseas is more than its expenses?
A.
GNP would be higher than GDP
B.
GDP would be higher than GNP
C.
no effect on GNP or GDP
D.
GDP and GNP would be the same
Answer:
gnp would be higher than gdp
What is The least common denominator of 11/12, 7/9, and 2/3
Answer:
261?
Step-by-step explanation:
LCD = 261
Equivalent Fractions with the LCD
11/29 = 99/261
7/9 = 203/261
2/3 = 174/261
Ruby's math teacher finds that there's roughly a linear relationship between the
amount of time students spend on their homework and their weekly quiz scores. This
relationship can be represented by the equation y=55 + 6x, where y represents
the expected quiz score and x represents hours spent on homework that week. What
is the meaning of the x-value when y = 76?
Answer: The number of hours a student should spend on their homework to expect a score of 76 on the quiz.
Which hill is steeper?
A. A hill that rises 2 feet for every 10 feet of run
B. A hill that rises 2 feet for every 15 feet of run
Answer:
B. A hill that rises 2 feet for every 15 feet of run.
Step-by-step explanation:
The two must have COPs. We'll narrow them down.
For A, we divide 10 by 2.
[tex]\frac{10}{2} = 5.[/tex]
For B, we divide 15 by 2.
[tex]\frac{15}{2} = 7.5.[/tex]
B has the larger number, so it is B.
Answer:
b because the 2 feet 15 feet long and it is bigger than a the 2 feet and 10 feet long is the smallest so the hill that is steeper is bStep-by-step explanation:
step one look at the answer choice
step two see which one is bigger
step three then find the smallest
step four put which one is steeper
You are given the sample mean and the population standard deviation. Use this information to construct the 90% and 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals. From a random sample of 40 business days, the mean closing price of a certain stock was $108.50 . Assume the population standard deviation is$11.36 . The 90% confidence interval is (nothing ,nothing ).(Round to two decimal places as needed.) The 95% confidence interval is (nothing ,nothing ). (Round to two decimal places as needed.) Which interval is wider? Choose the correct answer below. The 95% confidence interval The 90% confidence interval Interpret the results. A. You can be 90% confident that the population mean price of the stock is outside the bounds of the90% confidence interval, and 95% confident for the 95% interval. B. You can be certain that the population mean price of the stock is either between the lower bounds of the 90% and 95% confidence intervals or the upper bounds of the 90% and 95% confidence intervals. C. You can be 90% confident that the population mean price of the stock is between the bounds of the 90% confidenceinterval, and 95% confident for the 95% interval. D. You can be certain that the closing price of the stock was within the 90% confidence interval for approximately 36 of the 40 days, and was within the 95% confidence interval for approximately 38 of the 40 days.
Answer:
The 90% confidence interval is ($105.55,$111.45)
The 95% confidence interval is ($104.98,$112.02)
The 95% confidence interval is wider.
C. You can be 90% confident that the population mean price of the stock is between the bounds of the 90% confidenceinterval, and 95% confident for the 95% interval.
Step-by-step explanation:
90% confidence interval:
We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:
[tex]\alpha = \frac{1 - 0.9}{2} = 0.05[/tex]
Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].
That is z with a pvalue of [tex]1 - 0.05 = 0.95[/tex], so Z = 1.645.
Now, find the margin of error M as such
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.
[tex]M = 1.645\frac{11.36}{\sqrt{40}} = 2.95[/tex]
The lower end of the interval is the sample mean subtracted by M. So it is 108.50 - 2.95 = $105.55
The upper end of the interval is the sample mean added to M. So it is 108.50 + 2.95 = $111.45
The 90% confidence interval is ($105.55,$111.45)
95% confidence interval:
We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:
[tex]\alpha = \frac{1 - 0.95}{2} = 0.025[/tex]
Now, we have to find z in the Ztable as such z has a pvalue of [tex]1 - \alpha[/tex].
That is z with a pvalue of [tex]1 - 0.025 = 0.975[/tex], so Z = 1.96.
Now, find the margin of error M as such
[tex]M = z\frac{\sigma}{\sqrt{n}}[/tex]
In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.
[tex]M = 1.96\frac{11.36}{\sqrt{40}} = 3.52[/tex]
The lower end of the interval is the sample mean subtracted by M. So it is 108.50 - 3.52 = $104.98
The upper end of the interval is the sample mean added to M. So it is 108.50 + 3.52 = $112.02
The 95% confidence interval is ($104.98,$112.02)
Which interval is wider?
The 95% confidence interval has a larger margin of error, so it is wider.
x% confidence interval:
A confidence interval is built from a sample, has bounds a and b, and has a confidence level of x%. It means that we are x% confident that the population mean is between a and b.
So the correct interpretation is:
C. You can be 90% confident that the population mean price of the stock is between the bounds of the 90% confidenceinterval, and 95% confident for the 95% interval.
Abigail bought 6/8 of a pound of turkey at the deli She used 2/4 of it to make sandwiches for lunch how much of the turkey did Abigail use for sandwiches
Answer:
2/8
Step-by-step explanation:
I think this is subtraction (if not just tell me i'll edit)
6/8 - 2/4 = 6/8 - 4/8 = 2/8
Answer:
4/8
Step-by-step explanation:
2/4 is equivalent to 4/8
She was 2/8 left over btw
The answer is in red but I need someone to show the work PLEASE ?!
Answer:
(-1, -8)
Step-by-step explanation:
So you would do the simplifying by "subtracting" the equations from each other. So to isolate the x, you could subtract the y away.
8x + y = -16
-3x + y = -5
-___________
11x = -11
x = -1
Then, substitute x into either equation.
8(-1) + y = -16
-8 + y = -16
Isolate y.
y = -8
simplify 6+8/2x{-3}+7
Answer:
6+8/2×-3+7
6+4×4
6+16
22
Find the number that is exactly halfway between and
3/10 and 4/5
Answer:
0.550
Step-by-step explanation: