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Ms. Jones has 53 coins. They are all nickels and dimes. The total value of the coins is $4.00. How many nickels does she have?

 Mar 4, 2021
 #1
avatar+235 
+1

2 equations:

(1) n+d=53 

(2) 0.05n+0.1d = 4

 

(2) * 100 = 5n+10d = 400 

(1) * 10 = 10n + 10d = 530 

 

(1)-(2)  = 5n=130 n=26

26 Nickels

 

coolcoolcool

 Mar 4, 2021
 #2
avatar+30523 
+1

Very similar....see if you can apply the method to this problem....

https://web2.0calc.com/questions/matthew-has-a-jar-of-368-nickels-and-dimes-he-has#r1

 Mar 4, 2021

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