Answer:
Solving the system of equations:
x: 1
y: 2
Step-by-step explanation:
Plug it in to see if it is right, to make sure of course. Better to be safe than sorry.
Answer:
y =5-3x
and
Step-by-step explanation:
First question
Subtract 3 x from both sides of the equation
Sinah bought some packs of gum. There were 8 sticks of gum in each pack. She gave 12 sticks of gum to manuela. This left sinah with 28 sticks of gum. Which equation can be used to represent this situation where g is the number of packs of gum that sinah bought?
Answer:
8g = 12 + 28
g = 5 packs
Step-by-step explanation:
Share of the sticks of gum
Manuela = 12 sticks
Sinah = 28 sticks
There are 8 sticks in each pack
g = number of packs of gum that sinah bought?
g × 8 sticks = 12 sticks + 28 sticks
8g = 40
Divide both sides by 8
g = 40 / 8
g = 5 packs
Phillip reads 1/10 of a book in 1/6 of an hour. How much of the book does Phillip read in 1 hour?
what one is a linear function
Answer:
C
Step-by-step explanation:
A linear function will have a constant rate of change. The rate of change (or slope) for C is -3. All the other graphs do not have a constant rate of change. As in the difference between each value was different.
The table shows the rates for sending text
messages.
Are the rates proportional?
Explain.
Messages Cost
50
$6
75
$9
100
$12
Which expression is equivalent to 6(7-2) PLEASE HELP ME
Answer:
A. 42 - 12
Step-by-step explanation:
6(7-2) = 6(5) = 30
A. 42 - 12 = 30
B. 13 - 8 = 5
C. 67 - 62 = 5
D. 7 - 2 = 5
Answer:
42-12
Step-by-step explanation:
I'll keep this short
You do distributive property so you do 6*7-6*2=42-12
GL, tell me if you have any questions
Lily drives 90 miles in 2 hours. If she drives at the same rate, how far does lily travel in each of the following time intervals: 1 hour, 1/2 hour, and 3 hours? Please solve in at least two different ways. You could make a bar model, double number line, ratio table, or graph.
How far does she travel in 1/2 hour?
Answer:
22.5 miles 1/2 hour - 45 miles 1 hour - 67.5 miles 1.5 hours - 135 miles 3 hours
Step-by-step explanation:
If Lily travels 90mph in 2 hours she would travel 45mph each hour. So now just take 45 times 1, 1.5, and 3 to get your answers. So in half an hour she would travel 22.5 miles
geometry help please explain no graph
PLSSSS HELPPP ME ASAAPPP PLSS ANSWER BOTH QUESTIONS!!!!!!!!!!
I WILL GIVE BRAINLIEST!!!!
Meg is a veterinarian. She found that 7,or 25% of the dogs she saw this week were boxers. Steve is also a veterinarian. He found that 50% of the 10 dogs he saw this week were boxers. Does each person need to find the part, the whole, or the percent?
HELP NOW!!!!!!!!!
Answer:
whole
Step-by-step explanation:
1. A school has 400 students. They all come to school by bus, and each bus carries the same number of students. How many students might there be on each bus if each hold only 50 children?
Answer:
8
Step-by-step explanation:
400 divided by 50 is 8
Answer:50
there are 400 students and a bus can hold 50 so you divide 400 by 50 which is equel to 8
so about 50 kids if all the kids go on the bus
Gordon rolls a fair dice 162 times.
How many times would Gordon expect to roll an even number?
Answer:
hmm.........................
Answer:
64
Step-by-step explanation:
Which expression has the greatest value?
∣−25∣ ∣−16∣ ∣18∣ ∣−22∣
Answer: |18| is the greatest value.
Step-by-step explanation:
|-25|, |-16| and |-22| are all negative numbers. (Negative numbers are numbers that are less than zero.)|18| is a positive number. (Positive numbers are whole numbers that is larger than zero. On a number line these numbers come before zero and negative numbers)|18| is a greater value because it is a positive number.(-2, 4) and (3, -1)
Write equation in slope intercept form
Answer: y=-x+2
Step-by-step explanation:
m=(-1-4)/(3+2)=-5/5=-1
y=-x+b
Plug in the values
y=-x+2
Answer:
y = − x + 2
Step-by-step explanation:
5 rate?? my brother doesn't want to helpx me someone help?]'
Answer:
-5/2 is the reciprocal of -2/5, but the opposite would just be 5/2.
Step-by-step explanation:
Answer:
yes the answer is yes i think im not good at explaing but hope that helps
Step-by-step explanation:
PLEASE HELP MEEEE 28 POINTS!!!!
A. Find an equation in point-slope form for the line having the slope m = 6 and containing the points (7,2)
B. Find an equation in point-slope form for the line having the slope m=-4 and containing the point (1,9).
Answer:
Part A)
An equation in point-slope form for the line having the slope m = 6 and containing the point (7,2).
[tex]y - 2 = 6(x-7)[/tex]
Part B)
An equation in point-slope form for the line having the slope m = -4 and containing the point (1, 9).
[tex]y - 9 = -4(x-1)[/tex]
Step-by-step explanation:
Part A)
Given
Slope m = 6
Point (7, 2)
To Determine
Find an equation in point-slope form for the line having the slope m = 6 and containing the point (7,2).
Using the point-slope form of the line equation
[tex]y-y_1=m\left(x-x_1\right)[/tex]
where
m is the slope of the line(x₁, y₁) is the pointIn our case:
m = 6(x₁, y₁) = (7, 2)substituting the values m = 6 and the point (x₁, y₁) = (7, 2) in the point-slope form of line equation
[tex]y-y_1=m\left(x-x_1\right)[/tex]
[tex]y - 2 = 6(x-7)[/tex]
Therefore, an equation in point-slope form for the line having the slope m = 6 and containing the point (7,2).
[tex]y - 2 = 6(x-7)[/tex]
Part B)
Given
Slope m = -4
Point (1, 9)
To Determine
Find an equation in point-slope form for the line having the slope m = -4 and containing the point (1, 9).
Using the point-slope form of the line equation
[tex]y-y_1=m\left(x-x_1\right)[/tex]
where
m is the slope of the line(x₁, y₁) is the pointIn our case:
m = -4(x₁, y₁) = (1, 9)substituting the values m = -4 and the point (x₁, y₁) = (1, 9) in the point-slope form of line equation
[tex]y-y_1=m\left(x-x_1\right)[/tex]
[tex]y - 9 = -4(x-1)[/tex]
Therefore, an equation in point-slope form for the line having the slope m = -4 and containing the point (1, 9).
[tex]y - 9 = -4(x-1)[/tex]
The answer is:
1) y - 2 = 6(x - 7)
2) y - 9 = -4(x - 1)
Work/explanation:
The point slope formula is:
[tex]\bf{y-y_1=m(x-x_1)}[/tex]
where m = slope;
(x₁, y₁) is a point on the line.
For this problem, m = 6 and the point is (7,2).
Plug in the data:
[tex]\bf{y-2=6(x-7)}[/tex]
__________________
For this problem, m = -4 and the point is (1,9).
Plug in the data:
[tex]\bf{y-9=-4(x-1)}[/tex]
Hence, these are the equations.
Please help for brainliest!!!
Answer:
solve m+5=4m-10 to find the value of m
Step-by-step explanation:
The weight of a giant panda is 10 times the weight of a red panda. The combined weight of the pandas is 220 pounds. What is the weight of each panda?
Answer:
The weight of a giant panda = x = 200 pounds
The weight of a red panda = y = 20 pounds
Step-by-step explanation:
Let
The weight of a giant panda = x
The weight of a red panda = y
The weight of a giant panda is 10 times the weight of a red panda.
x = 10y
The combined weight of the pandas is 220 pounds.
x + y = 220
We substitute 10 y for x
10y + y = 220
11y = 220
y = 220/11
y = 20 pounds
Solving for x
x = 10y
x = 10 × 20
x = 220 pounds
Hence:
The weight of each panda is:
The weight of a giant panda = x = 200 pounds
The weight of a red panda = y = 20 pounds
Answer:
maek them brainliest
Step-by-step explanation:
please
good day
Victor is thinking of a number. If he multiplies his number by nine and then subtracts 7, he
gets 101. What is Victor's number?
Answer:12
Step-by-step explanation:
12x9=108
108-7=101
Your welcome
EASY POINTS.........
Answer:
B
Step-by-step explanation:
I think
Answer:
Its BBBBBBBBBBBBBBBBBBBBB
How many solutions does 6 -3x = 12 - 6x have?
A. Two solutions
B. No solutions
C. Infinitely many solutions
D. One solution
Answer:
D. One solution
Step-by-step explanation:
Simplify:
[tex]6-3x = 12-6x\\-3x+6x = 12-6\\3x = 6\\x = 2[/tex]
There is only one solution (x=2) that satisfy the equation.
please help me , I need help!!!
P is an odd number. Q is an even number. Explain why P × Q + 1 is always an odd number?
Answer:
An odd number times an even number is always even
e.g 2 × 3 = 6
4 × 5 = 20
adding 1 to an even number makes it odd
6 + 1 = 7
20 + 1 = 21
hope this helps...
Answer:
P is an odd number
Q is an even number
Now, product of a odd number and even number is always even number.
Therefore, P×Q is a even number
Now, by adding 1 to the even number it becomes odd.
Hence, P×Q+1 is always an odd number.
Simplify the expression 53 × 5-^5.
Answer:
i believe its 260
Step-by-step explanation:
sorry if its wrong
Answer:
Step-by-step explanation:
Hope this Helps ;)
Car Survey In a survey of 3,200 people who owned a certain type of car, 2,240 said they would
buy that type of car again. What percent of the people surveyed were satisfied with the car?
% of the people surveyed were satisfied with the car.
I NEED HELP ASAP
Answer:
70%
Step-by-step explanation:
2240/3200 x100
2240/32
=70%
Sally wants to buy a new sewing machine. The regular price is $749. The store is
offering a 20% discount and a sales tax of 6% is added after the discount. What is
the total cost of the TV?
Answer:
The answer is 599.20
Step-by-step explanation:
Solve The Equation
___ - (-7) = 5
Answer:
-2
Step-by-step explanation:
x-(-7)=5
x+7=5
-7
x=-2
I have 5,049,349 marbles. Toona stole 545,000 of them. she gave 45,000 back, and i dropped 56,980. How many do i have left?
Answer:
The answer is 4,492,369.
Step-by-step explanation:
First of all, how the HECK do you have 5 MILLION MARBLES?! Make the equation for the problem: 5049349 - 545000 + 45000 - 56980.
5049349 - 545000 + 45000 - 56980
4504349 + 45000 - 56980
4549349 - 56980
4492369
Mr. Silverstone invested some money in 3 different investment products. The investment was as follows:
a. The interest rate of the annuity was 4%.
b. The interest rate of the annuity was 6%.
c. The interest rate of the bond was 5%.
d. The interest earned from all three investments together was $950.
Which linear equation shows interest earned from each investment if the total was $950?
a.) a + b + c = 950
b.) 0.04a + 0.06b + 0.05c = 9.50
c.) 0.04a + 0.06b + 0.05c = 950
d.) 4a + 6b + 5c = 950
Answer: c.) 0.04a + 0.06b + 0.05c = 950
Step-by-step explanation:
To find interest per investment you need to multiply the percentage interest rate by the value of the investment.
When written in linear equations, percentages are converted to decimal form.
4% = 1/100 = 0.04
6% = 6/100 = 0.06
5% = 5/100 = 0.05
These are the interest rates that when multiplied by their investments, will give a total of $950.
0.04 * a + 0.06 * b + 0.05 * c = 950
0.04a + 0.06b + 0.05c = 950
Option c is therefore correct.
Solve this system of equations using substitution. x=4 3x−y=−1
Answer:
y=13
Step-by-step explanation:
12-y=-1
-y=-13
y=13
Answer:
Step-by-step explanation:
Here you go mate
Step 1
x=4
Step 2
3x-y=-1 Substitute 4 for x
(3)(4)-y=-1
-y=-13
Step 3
-y=-13 Divide both sides
answer
y=13
Can someone answer this
Answer:
The answer is the first option.
Step-by-step explanation:
Remember
[tex]m = \frac{y_2 - y_1 }{x_2 - x_1}[/tex]
Plug in for each!
[tex]m = \frac{ 1 - 2}{4 - 8} = \frac{ - 1}{ - 4} = \frac{1}{4} [/tex]
The vegetable garden has 95 ripe plants. The
number of tomatoes is 16 fewer than twice the
number of squashes. How many of each
vegetable are ripe?
Answer:
58 tomatoes
37 squash
Step-by-step explanation:
let 's' = squash
let '2s - 16' = tomatoes
s + 2s + 16 = 95
3s + 16 = 95
3s = 111
s = 37 (squash)
2(37) - 16 = 58 (tomatoes)