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koban [17]
4 years ago
7

Solve the system of equations using substitution.

Mathematics
1 answer:
Radda [10]4 years ago
6 0

Answer:

C. No solution.

Step-by-step explanation:

y = −2x + 1

4x + 2y = −1

Substituting y = -2x + 1 in the second equation:

4x + 2(-2x + 1) = -1

4x - 4x + 2 = -1

2 = -1  which is  absurd so there is no solution.

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3 years ago
Suppose Marlie only paid interest during her 4 years in school and the six-month grace period. What will she pay now in interest
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Answer: interest = $ 3,629.34

Step-by-step explanation:

Complete question

(Marlie will be starting college next year, federal unsubsidized student loan in the amount of $18,800 at 4.29%. She knows that during this non-payment time, interest will accrue at 4.29%. Suppose Marlie only paid the interest during her four years in school and the six-month grace period. What will she now pay in interest over the term of the loan.)

This question relates to interest over a single period of time and since it's not compounded, we use formula for simple interest to calculate the interest accrued.

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