Question

You earn $9 per hour for 15 hours of work. You spend $20 of your earnings on gasoline. Three choices show ways to calculate how much money, m, is left after you buy gasoline. Which choice does NOT?

Money left = 15 hours • $9 per hour – $20


m = $9 per hour • 15 hours – $20


m = 15 hours • $9 per hour, or $20, whichever is greater


Subtracting $20 from 15 hours times $9 per hour

Answer 1

which one do you think ?

Answer 2

D.

Answer 3

or B.

Answer 4

$9 per hour for 15 hours of work. = 9*15
spend $20 of your earnings on gasoline.

so total money = 9*15 - 20

i.e subtracting 20 from 15 times 9
so a,b and are out of options.

Answer 5

So C

Answer 6

yes. :)

Answer 7

thank you!

Answer 8

anytime :)