Asked by Larry

sally has twice as many dimes as nickels. the total value is $3.50. how many nickels does she have?

This is as far as i got:

#number of nickels = n
#number of dimes = 2n

help!!
Answered by Larry
actually, figured out the formula

0.05n+0.1(2n)=3.50
Answered by bobpursley
then the value must be 3.50

.05n+.10(2n)=3.50
n+ 4n=70 I divided by .05..
n=14

check this.
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