SOLUTION: Angelina has a collection of nickels and dimes worth $4.65. If she has 70 nickels and dimes, how many of each does she have

Question 1061986: Angelina has a collection of nickels and dimes worth $4.65. If she has 70 nickels and dimes, how many of each does she have
Found 3 solutions by josgarithmetic, MathTherapy, ikleyn:
Answer by josgarithmetic(39617)   (Show Source): You can put this solution on YOUR website!
Linear systems application for coin combination

n nickels and d dimes

70 more nickels and dimes? No sense here. IF you meant, 70 MORE nickels than dimes, then , and the other equation is .

The money accounting equation simplifiable if multiply both members by 20 to have , and the system is easily solved partly through elimination.

Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!
Angelina has a collection of nickels and dimes worth $4.65. If she has 70 nickels and dimes, how many of each does she have

With N being the number of nickels, and D being the number of dimes, the CORRECT equations are:
When you solve the system, you should get:
Pay NO attention to anyone who says otherwise. They have no CLUE what's going on, or how to solve math problems.
WARNING: These people are trying to FAIL you.
Answer by ikleyn(52787)   (Show Source): You can put this solution on YOUR website!
.
Angelina has a collection of nickels and dimes worth $4.65. If she has 70 nickels and dimes, how many of each does she have
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

n + d = 70, (1) 5n + 10d = 465 (2) (the "value" equation in cents) Solve by any methods you know (substitution or elimination). Answer. 23 dimes, 47 nickels.

"josgarithmetic" interprets and understands the condition incorrectly.
His equations are wrong.
Simply ignore it.

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