Gary is 25 years old. That is 7 more than twice Sean's age. Write an equation that
could be used to find (x) Sean's age.

2x + 7 = 25

x = 7

Step-by-step explanation:

Gary: 25

Sean: x

Let's break down the sentence into mathematical terms

Gary is 25 years old. That is 7 more than twice Sean's age.

In math, is means equal to. It is represented with an equal sign (=)

Gary = 25. 25 = 7 more than twice Sean's age.

7 more is represented by 7 +

Gary = 25. 25 = 7 + than twice Sean's age.

Twice means double which is 2 ·

Gary = 25. 25 = 7 + 2 · Sean's Age

Sean's Age will be represented by x

Gary = 25. 25 = 7 + 2x

We don't need it to say "Gary = 25" in our equation.

25 = 7 + 2x

Let's rewrite it with the associative property.

2x + 7 = 25

Now, solve

2x + 7 = 25

-7           -7

2x = 18

÷2  ÷2

x = 7

Sean is 7 years old.

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation:

answer: yes, since the line has a steeper rate of change than the exponential the y-values will be greater and they will only intersect one time.