Question

Beth swam laps to raise money for a charity. Beth raised $15 plus $0.65 per lap that she swam. She raised a total of $80.00. Let x represent the number of laps Beth swam. What expression completes the equation to determine the total number of laps Beth swam? How many laps did Beth swim?

Answer 1

15 + .65x = 80

15 + .65x = 80
15 - 15 + .65x = 80 - 15
.65/.65x = 65/.65
x = 100
Beth swam 100 laps.

Answer 2

Answer

Find out the how many laps did Beth swim and write expression the  total number of laps Beth swam .

To proof

As given

Beth swam laps to raise money for a charity.

Beth raised $15 plus $0.65 per lap that she swam.

She raised a total of $80.00

Let x represent the number of laps Beth swam.

Than the expression becomes

15 + 0.65× x = 80 .00

Simplify

15 + 0.65x = 80

0.65x = 80 -15

0.65x = 65

$x = \frac{65}{0.65}$

x = 100

Therefore the number of laps did Beth swim be 100 .

Hence proved