Mrs. Grijalva hired a landscaping company to landscape her back yard. The company has a standing policy to plant 3 bushes for every tree planted. The company charges $75 for each tree planted and $20 for each bush. Mrs. Grijalva was billed for $810 after the planting was complete. How many bushes did the company plant in Mrs. Grijalva's back yard?

Question

Mathematics

Brycen Graves

24 April, 08:53

Mrs. Grijalva hired a landscaping company to landscape her back yard. The company has a standing policy to plant 3 bushes for every tree planted. The company charges $75 for each tree planted and $20 for each bush. Mrs. Grijalva was billed for $810 after the planting was complete. How many bushes did the company plant in Mrs. Grijalva's back yard?

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Answers (1)

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Jean Porter · Answer 1

Given:

3 bushes for every 1 tree planted

cost of a tree = 75

cost of a bush = 20

75t + 20 (3t) = 810

75t + 60t = 810

135t = 810

t = 810 / 135

t = 6

6 trees planted.

1:3 = 6:x

x = 3*6

x = 18

18 bushes planted.