SOLUTION: Sarah spent $25
Lily spent $18 and had 2 times the amount of money left after Sarah spent her $25.
What was the original amount of money they started with.
HELP!
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-> SOLUTION: Sarah spent $25
Lily spent $18 and had 2 times the amount of money left after Sarah spent her $25.
What was the original amount of money they started with.
HELP!
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Question 229167: Sarah spent $25
Lily spent $18 and had 2 times the amount of money left after Sarah spent her $25.
What was the original amount of money they started with.
HELP! Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Sarah spent $25
Lily spent $18 and had 2 times the amount of money left
after Sarah spent her $25.
What was the original amount of money they started with.
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Let Sarah start with "s" amount of money.
Let Lily start with "L" amount of money.
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After Sarah spent 25 she has "S-25"
After Lily spent 18 she has "L-18"
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Comment: You have information to form only one equation.
You need a second equation to completely solve the problem
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Equation:
L-18 = 2(S-25)
L-18 = 2S-50
L = 2S - 32
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Original amount was S+L = S + (2S-32) = 3S-32
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Cheers,
Stan H.
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