Question

After Hiro's family photoshoot, the photographer sells the printed photos by the sheet. Hiro has a \$200$200dollar sign, 200 credit from a prior session, and the above equation gives the total credit left, CCC, in dollars, if he buys sss sheets. How many sheets can Hiro purchase with his credit?

Answer 1

Answer: 5 sheets

Step-by-step explanation:

The question seems incomplete, however, I found the mentioned equation:

`C=40 (5-s)`

We are told
`C` is in units of
`\$` and
`s` is in units of
`sheets`, this means the other side of the equation must be in
`\$`, as well.

So, if we make a dimensional analysis :

`\$=40(\$)/(sheets) (sheets)`

This means each sheet costs
`\$40`, then with a Rule of three, we can find how many sheets Hiro can purchase with
`\$200`:

If:

1 sheet ----
`\$40`

s sheets ----
`\$200`

Then:

`s=((\$200)(1 sheet))/(\$40)=5 sheets`

Therefore,
`C=\$0` (the total credit left is zero) and we can verify
`s=5` by isolating it from the equation:

`s=(200 - C)/(40)`

`s=(200 - 0)/(40)`

`s=5`