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vova2212 [387]
2 years ago
7

Sara is going to home depot to buy some plants for her back yard. The price of 4 rose bushes is $12 and the price of 5 tulips is

$20. Sara ends up buying $80 worth of roses and tulip plants. Which equation represents the relationship between the number of rose bushes, x, and the number of tulip plants, y, that Sara bought at home depot?
Mathematics
1 answer:
saul85 [17]2 years ago
5 0

Answer:

3r + 4t = 80

Step-by-step explanation:

Roses cost $3 each, tulips cost $4 each

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Answer:

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Step-by-step explanation by completing the square:

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(x - 12) (x + 4) = 9

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x^2 - 8 x - 48 = 9

Add 48 to both sides:

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x^2 - 8 x + 16 = 73

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x - 4 = sqrt(73) or x - 4 = -sqrt(73)

Add 4 to both sides:

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Add 4 to both sides:

Answer:  x = 4 + sqrt(73) or x = 4 - sqrt(73)

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