Felicia had $80 when she went to a music store that charges $18 for each CD. She needs to have no less than $20 in her wallet wh
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Answer
Solution:
p = 79
n = 52
Step-by-step explanation:
Given equations:
A)
B)
To solve for and
Naming the first equation as A and second as B.
Using elimination method to solve.
In order to eliminate we subtract equation A from B.
Subtracting A from B i.e [
(B)
- (A)
We get,
Dividing both sides 2.26.
∴
We can solve for by substituting
in equation A.
Subtracting both sides by 52.
∴