SOLUTION: Sally has twice as many dimes as nickels. Altogether she has $2.00. How many dimes does she have and how many nickels does she have?

SOLUTION: Sally has twice as many dimes as nickels. Altogether she has $2.00. How many dimes does she have and how many nickels does she have?

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Question 615968: Sally has twice as many dimes as nickels. Altogether she has $2.00. How many dimes does she have and how many nickels does she have?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = number of nickels
Let = number of dimes
(1) ( in cents )
(2)
Substitute (2) into (1)
(1)
(1)
(1)
and, since
(2)
(2)
She has 8 nickels and 16 dimes
check:
(1)
(1)
(1)
(1)
OK
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