Question

Kelly makes $10 more per hour than her regular pay when she is working overtime. Yesterday, she worked 8 regular hours and 4 overtime hours and earned $160.

What is Kelly's regular pay per hour?

$20 per hour
$10 per hour
$12 per hour
$16 per hour

Answer 1

is it 20

Answer 2

Let's let her "Regular pay" = x

So when working regular hours...she makes (x * number of regular hours)
During overtime hours..she makes 10 dollars more than regular per hour (x+10)...so she makes ((x+10) * number of overtime hours)

So here...if she made total 160...and worked 8 regular hours and 4 overtime hours...we have

\[\large (x * 8) + ((x+10)*4) = 160\]
\[\large 8x + 4x + 40 = 160\]

I'll leave this for you to finish up!

Answer 3

Also Evan, to just check your answer...think about it

If her regular pay is 20 dollars per hour....and she works 8 regular hours...that's ALREADY 160 so that would mean she made NOTHING in terms of overtime pay...so that can't be correct

Answer 4

ten

Answer 5

There we go!