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Question 227605: what equation could help me solve this problem??
Briana and her sister Molly both want to buy the same model bicycle. Briana needs $73 more before she can afford the bike. Molly needs $65 more. If they combine their money, they will have just enough to buy one bicycle that they could share. What is the cost of the bicycle?
Answer by ankor@dixie-net.com(22740)   (Show Source):
You can put this solution on YOUR website! what equation could help me solve this problem??
Briana and her sister Molly both want to buy the same model bicycle. Briana needs $73 more before she can afford the bike. Molly needs $65 more. If they combine their money, they will have just enough to buy one bicycle that they could share. What is the cost of the bicycle?
:
Let x = cost of bike
:
It says,"Briana needs $73 more before she can afford the bike.", so we can say:
(x - 73) = B, $amt
:
" Molly needs $65 more."
(x - 65) = M's $amt
:
The equation: B's amt + M's amt = cost of bike
(x - 73) + (x - 65) = x
2x - 138 = x
2x - x = 138
x = $138
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