teafranklin10
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PLEASE HELP ASAP!!/BRAINLIEST/5 STARS/HEART(THX)!

Jimmy is going to pack his backpack for a trip. His backpack is 60 cubic litres. He has a pile of equipment that takes up 43 cubic litres and then he has his sleeping bag that takes up 23 cubic litres. Let r be the amount of room left in his backpack. Which equation could you use to determine if he has enough room in his backpack.

A) r = 23 + 43
B) r = 23 + 43 + 60
C) 23 + 43 + r = 60
D) 23 + r = 60 + 43

Respuesta :

emccon3487
It would be C because you have the sum will equal 60 so you would add the two amounts together and then add r to find if he has enough room. (Which he doesn't... I think)
ltrevill
To start, we know these facts:

His backpack is 60 cubic L
His equipment is 43 cubic L
His sleeping back is 23 cubic L
R = amount of room left.

The best formula to use is
C) 23 + 43 + R = 60

This is because we want to be able to solve for R in order to find how how much space he has left.

23 + 43 + R = 60
66+ R = 60
66-66 + R = 60-66
R = -6
He is over his amount by 6.

ANSWER:
C) 23 + 43 + R = 60

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