Question

A florist shop represents its first month’s sales with the equation y = 168 x + 8, where x represents the number of days that the shop is open and y represents the sales in dollars. The owner of the shop would like to calculate the number of days it took to reach $3,200 in sales. Which would be used to solve the problem?
Substitute 3,200 for x.
Add 8 and 3,200.
Divide 3,192 by 168.
Isolate y in the equation.

Answer 1

Answer:

Divide 3,192 by 168.

Step-by-step explanation:

Given

$y = 168x + 8$

$y = 3200$

Required

Step to required to get x when $y = 3200$

The first step is to substitute $3200$ for $y$

$3200 = 168 * x + 8$

Subtract both sides by 8

$3192 = 168 * x$

Divide both sides 168 ---- [this answers the question]

$19 = x$

$x = 19$