Mrs. White is planing a field trip for the 5th grade students at Sunshine Elementary School. There are 95 students in the 5th grade. The trip costs $35 per student. If 87 thrid graders and 92 fourth graders also come to the trip, how much money will Mrs. White collect?

Step-by-step explanation:

We know that:

So, using this data we can form the relation for the problem:

; where b is the unknown fixed fee.

Solving for b:

With this result, the explicit linear equation would be:

; where x is hours and y is the total cost.

For 10 hours would be:

Therefore, for 10 hours the charge is $180.