Question

HELP PLZ!

Answer 1

Answer:

23 boxes of toys are being stored.

Step-by-step explanation:

There is a fixed cost of $1200 a month for rent and a variable cost of $5 per box of toys that are stored

This means that for x boxes of toys stored, the total cost is of:

$C(x) = 1200 + 5x$

If the total cost for this month was $1315, how many boxes of toys are being stored?

This is $x$ for which $C(x) = 1315$. So

$C(x) = 1200 + 5x$

$1315 = 1200 + 5x$

$5x = 115$

$x = \frac{115}{5}$

$x = 23$

23 boxes of toys are being stored.