Betty had $70. She bought a necklace for $9 and a ring for $7. Which expression correctly shows the total money Betty has left?

Question

Semmy [17]

2 years ago

9

Betty had $70. She bought a necklace for $9 and a ring for $7. Which expression correctly shows the total money Betty has left?

A $70 − (−$9) + (−$7) B $70 + (−$9) + (−$7) C $70 − (−$9) − (−$7) D $70 + (−$9) − (−$7) A B C D???
PLZZ HELP ASAP

Mathematics

2 answers:

beks73 [17] · Answer 1 · 2022-06-03T10:45:37+03:00

beks73 [17]2 years ago

8 0

The answer would be B!

aniked [119] · Answer 2 · 2022-06-03T09:12:32+03:00

The correct answer would be B) $70+(-$9)+(-$7) because a negative plus a positive cancels out to make a negative, so even though there is a plus and a minus sign it really only means minus. Therefore, you solve it just like a simple math problem $70-$9-$7. In the end Betty ends up with $54 in total having spend $16.