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Need help quick easy problem to solve pls help!
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5 votes
Need help quick easy problem to solve pls help!

Need help quick easy problem to solve pls help!-example-1
User Muho
by
6.9k points

1 Answer

5 votes

Answer:

C

Explanation:

12b + 30f = 240

7b + 10f = 125

Multiply the second equation by -3

12b + 30f = 240

-21b -30f = -375

Add up the two equations

-9b = -135

b = $15

Substitute this value in one of the two equations

12 * 15 + 30f = 240

180 + 30f = 240

30 f = 60

f = $2

User Mark Granoff
by
5.7k points
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