MATHEMATICS MIDDLE SCHOOL

If it takes Sally 5 hours to clean the house, how long will it take Sally and her two friends to do the job if they work at the same rate?A. 1 1/3

B. 1 2/3

C. 2 1/3

D. 2 2/3

Answers

Answer 1

Answer:

Answer:

Option B. $1(2)/(3)$

Step-by-step explanation:

Sally takes time to clean the house = 5 hours

If Sally and her two friends do the job at the same rate,

The time for the same work done by 3 people = time taken by one / number of people

= $(5)/(3)$

= $1(2)/(3)$

It will take $1(2)/(3)$ hours to clean the house by 3 people.

Answer 2

Answer: Sally (1 person) took 5 hours. how long will it take 3 people?

5 hours / 3 people = 5/3 = 1 2/3

The answer is B

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Answers

Answer:

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Step-by-step explanation:

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The weight of an empty pickup truck is 2.1 times the weight of an empty car. If the empty car weighs 1.8 tons, how many tons does the pickup weigh carrying a 0.5 ton load

Answers

Answer:

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Step-by-step explanation:

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Answers

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