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

Divide 3,192 by 168.

Explanation:

Divide 3,192 by 168.

Step-by-step explanation:

Given

Required

Step to required to get x when

The first step is to substitute for

Subtract both sides by 8

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

Answer 2

Divide 3,192 by 168.

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`