What is the solution to the equation?7(5 + 9) = 7 · x + 7 · 9

A.
x = 1

B.
x = 5

C.
x = 7

D.
x = 9

Answers

Answer 1
Answer: B.
X=5

7(5+9)=7•x+7•9
(7•5)+(7•9)=7x+63
35+63=7x+63

Subtract 63 from both sides and you will be left with
35=7x
Divide each side by 7 (you pretty much just divide 35 by 7)

And x=5
Answer 2
Answer: To get the answer we have to solve eq.
7(5+9)=7x+7*9
7*5+7*9=7x+63
35+63=7x+63        /-63 
35=7x           /:7
5=x
The correct answer is B.


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B. laps
C. 1
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Answers

Answer to Number 1

Answer:

laps

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Answer to Number 2

2

Step-by-step explanation:

Because unit rates are the numbers in the mathematical problem and the rate units are the problem.

Example:

2 laps per minute

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__________________________________________________

The price of jeans was reduced $6 per week for 7 weeks. By how much did the price of the jeans change over the 7 weeks?

Answers

The price dropped by forty two dollars. We can work this out by simplymultiplying six, the number that we know the jeans were reduced by eachweek, by seven, the number of weeks that the jeans continued to reducein price for. Six times seven is of course forty two.

Answer:

The price dropped by $42.

Jared has 4 less than 3 times the number of trophies that zach had.

Answers

How much trophies does Jared have(
How much trophies does Jared have(

What is the x-intercept of y=40x+70

Answers

At th x-intercept y=o

∴40x + 70 = 0
  40x = -70
  x = -70/40
  x = -1.75

x intercepr = (-1.75,0)

A recipe used 4 cups of sugar every 2 teaspoons of vanilla. How many cups of sugar were used per teaspoon of vanilla?

Answers

Answer:

2 cups of sugar per teaspoon of vanilla  

Step-by-step explanation:

4  ÷ 2 = 2

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B.) -19
C.) -60
D.) 11

Answers

Answer: D)11

Step-by-step explanation:

-4=x-15

get x to be alone so add 15

15-4=x

11=x