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25 votes
3) Angela has 37 coins in dimes and nickels. She has a total of $3.30.

a) Write the system of 2 linear equations.
b) How many dimes does Angela have?
c) How many nickels does Angela have?

User Geckob
by
7.8k points

2 Answers

6 votes

Answer:

hmmmmm b

Explanation:

User Steven Mercatante
by
8.9k points
6 votes
x + y = 37
5x + 10y = 330
STEP ONE:
Substitute the variables
x = 37 - y
STEP TWO:
Substitute the values
5(37 - y) + 10y = 330
STEP THREE:
Multiply
185 - 5y + 10y = 330
STEP FOUR:
Subtract 185 from both sides
-5y + 10y = 145
STEP FIVE:
Add
5y = 145
STEP SIX:
Divide
y = 29
STEP SEVEN:
Check
x = 37 - 29
x = 8

Therefore, Angela has 8 nickels and 29 dimes.
User Nitesh Singh
by
7.8k points

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