Question

4. Your test scores for the semester are 87, 84, and 85. Can you raise your test average to 90with your next test?DefineEquation:Answer:can i have help on 6?

Answer 1

For this problem we need to define the variable first:

Define: x represent the number of hours used for the task

Equation:

`14x+250=22x`

Solve: Now we just need to solve for x. If we subtract 14x in both sides of the equation we got:

`250=22x-14x=8x`

And now if we divide both sides by 8 we got:

`x=(250)/(8)=31.25`

So then finally the answer is: At 32 or more hours Tim's Painting would be a better deal since it would cost less