SOLUTION: Siti saved $4.40. She saved 50-cent and 10-cent coins only. She has twice as many 50-cent as 10-cent coins. How many 50-cent coins does she have?

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Question 988232: Siti saved $4.40. She saved 50-cent and 10-cent coins only. She has twice as many 50-cent as 10-cent coins. How many 50-cent coins does she have?
Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
F - number of 50 cent coins
T - number of 10 cent coins
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.
.


.
.
.
Substituting,




So then,



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