joli2020 joli2020

02-10-2017
Mathematics

contestada

Please help me on this question and explain your answer thanks

Please help me on this question and explain your answer thanks class=

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kphung76127 kphung76127

02-10-2017

Each variable used is the first letter of each of their names.

t+b+c=87
c=2t
b=t+7

Substitute for b and c
t+ (t+7)+2t= 87
4t+7=87
4t=80
t=20

Plug in the known t value.
c=2(20)
c=40

b=20+7
b=27

Final answer: Tammy=$20, Boris= $27, Carlos=$40

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