Can someone help with polynomials in my study guide?
1 answer:
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Answer:
Step-by-step explanation:
Answer:
Part a) Wayne's savings before he spent $28 was $31.08
Part b) Stef's savings after she spent $28 was $9.29
Step-by-step explanation:
Part a)
Let
x ----> original amount of Wayne's savings
y ----> original amount of Stef's savings
we know that
<u><em>Original ratio</em></u>
----> equation A
After spending $28 each
Multiply in cross
----> equation B
substitute equation A in equation B
solve for y
Find the value of x
so
The original amount of Wayne's savings was $31.08 and the original amount of Stef's savings was $37.29
therefore
Wayne's savings before he spent $28 was $31.08
Part b) Find Stef's savings after she spent $28
Subtract $28 from the original savings
so
$37.29-$28=$9.29
therefore
Stef's savings after she spent $28 was $9.29