SOLUTION: mrs jones has a total of $2.11 in her drawer consisting of only pennies and dimes together she has 40 coins. find the number of pennies and dimes in her drawer

Question 1036053: mrs jones has a total of $2.11 in her drawer consisting of only pennies and dimes together she has 40 coins. find the number of pennies and dimes in her drawer
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
Call their numbers, p and d. Then we can write
p + d = 40 and the value equation is
p + 10d = 211 (we work in cents)
Now subtract equations and get
p + d = 40
-(p + 10d = 211)
----------------
-9d = -171
d = 19 dimes and that means she has
p = 21 pennies
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