SOLUTION: Madison, Abigail, and Brian spent $1,182 to buy their dad a computer. The three of them used their savings to pay for the computer. Abigail paid $142 more than Madison. Madison pai
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Question 169633: Madison, Abigail, and Brian spent $1,182 to buy their dad a computer. The three of them used their savings to pay for the computer. Abigail paid $142 more than Madison. Madison paid $353 less than Brian. How much did Brian pay? Answer by Mathtut(3670) (Show Source):
You can put this solution on YOUR website! let what madison, abigail, and brian spent be m,a,b respectively.
:
m+a+b=1182...eq 1
a=m+142......eq 2
b=m+353......eq 3
:
take the value of a in eq 2 and the value of b in eq 3 and plug them into the 3rd equation.
:
m+(m+142)+(m+353)=1182
:
3m+495=1182
:
3m=687: dollars mary spent
using eq 2: dollars abigail spent
:
using eq 1:dollars BRIAN spent
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