Answer:
Step-by-step explanation:
extraneous root is a solution o an equation that seems to be right but when we check it (by substituting it into the original equation) it turns out not to be right
6.525304468×10215
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C. 12 nickels and 9 dimes.
This is the only one that adds up to 1.50
X+y=52
y-x=28
Solve with elimination:
2y=80
y=40
x+40=52
x=12
First Number: 12
Second number: 40