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stira [4]
3 years ago
14

out of 200 houses in a neighborhood, 30 of them have their own lawn service. what percent of the houses do not have their own la

wn service?
Mathematics
2 answers:
stira [4]3 years ago
6 0

Answer:

85%

Step-by-step explanation:

If 30 of them have their own lawn service then that means 170 of them do not have their own lawn service.

Seeing as there are 200 houses in total, the fraction of people who don't have lawn service is 170/200. This is equal to 0.85 or 85%.

svetoff [14.1K]3 years ago
6 0

Answer:

Step-by-step explanation:

the houses do not have their own lawn service:

200-30=170

percentage=170/200=0.85 0r 85%

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Complete question is;

An automobile manufacturer is concerned about a possible recall of its best - selling four-door sedan. If there were a recall, there is a probability of 0.25 of a defect in the brake system, 0.18 of a defect in the transmission, 0.17 of a defect in the fuel system, and 0.40 of a defect in some other area.

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Let B denote that there is a defect in the break system

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Let F denote that there is a defect in the fuel system.

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P(B' ⋃ F') = 1 - P(B ⋃ F)

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P(B' ⋃ F') = 1 - 0.27

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