Question

The cost of an Uber ride can be modled by y = 3x + 5, where x is the number of miles driven. You paid $44 in a

cab fare, how many miles did you drive?

Answer 1

13 miles driven

Explanation:

y = 3x + 5

Y is the amount we paid, so we insert 44 into the equation.

44 = 3x + 5

Any thing you do to one side of the equation, you do to the other side, so -5 from both sides.

44-5 = 39

5-5 = 0

So you are left with:

39 = 3x + 0 (So you can ignore the 0)

Like I said earlier, anything you do to one side of the equation you do to the other so divide both sides by 3:

39 divided by 3 = 13

3 divided by 3 = 1

So now you have:

13 = 1x

So x = 13 and that is how many miles you drove.

If this is confusing let me know

Answer 2

13

Explanation:

44=3x+5

44-5=39

39/3=13