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Inga [223]
4 years ago
6

Follow the steps and finish the solution. 7 (x minus 3) = 28 Distributive property: 7 x minus 21 = 28. Addition property of equa

lity: 7 x = 49. Division property of equality: x = blank. What is the value of x?
Mathematics
2 answers:
Nookie1986 [14]4 years ago
6 0

Answer:

7

Step-by-step explanation:

7(x - 3) = 28                 Given

7x - 21 = 28                  Distributive property

7x - 21 + 21 = 28 + 21   Addition property of equality

7x = 49                         Division Property of equality

7x/7=49/7                  

x = 7

chubhunter [2.5K]4 years ago
6 0

Answer:

the answer is 7 (<u>A</u>)

Step-by-step explanation:

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3 years ago
Which number is rational?
marishachu [46]

Answer:

Option D, \sqrt{16}, since the answer is 4 which is a rational number considering that it's a whole number

Hope this helps!

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You earn $15 every 3 weeks. at this rate how much will you earn in 5 weeks ​
zhannawk [14.2K]

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$25

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3 years ago
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Daniel is currently 26 years older than his son. In sic years he will be tree times older than his son. How old are both of them
Vlad1618 [11]

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4 0
3 years ago
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When Vlad moved to his new home a few years ago, there was a young oak tree in his backyard. He measured it once a year and foun
Anestetic [448]

Answer:

The tree was 175 centimeters tall when Vlad moved into the house.

7 years passed from the time Vlad moved in until the tree was 357 centimeters tall.

Step-by-step explanation:

The height of the tree, in centimeters, in t years after Vlad moved into the house is given by an equation in the following format:

H(t) = H(0) + at

In which H(0) is the height of the tree when Vlad moved into the house and a is the yearly increase.

He measured it once a year and found that it grew by 26 centimeters each year.

This means that a = 26

So

H(t) = H(0) + 26t

4.5 years after he moved into the house, the tree was 292 centimeters tall. How tall was the tree when Vlad moved into the house?

This means that when t = 4.5, H(t) = 292. We use this to find H(0).

H(t) = H(0) + 26t

292 = H(0) + 26*4.5

H(0) = 292 - 26*4.5

H(0) = 175

The tree was 175 centimeters tall when Vlad moved into the house.

How many years passed from the time Vlad moved in until the tree was 357 centimeters tall?

This is t for which H(t) = 357. So

H(t) = H(0) + 26t

H(t) = 175 + 26t

357 = 175 + 26t

26t = 182

t = \frac{182}{26}

t = 7

7 years passed from the time Vlad moved in until the tree was 357 centimeters tall.

7 0
3 years ago
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