# Algebra

It takes 15 men working steadily 4 days to dig the foundation for a new apartment. How many days would it have taken 25 men working at the same rate to dig the foundation? Express your answer as a decimal to the nearest tenth.

1. 👍 0
2. 👎 0
3. 👁 683
1. 15 / 4 = 25 / x

15x = 100

x = 6.7 days

1. 👍 0
2. 👎 8
👩‍🏫
Ms. Sue
2. 15 men -> 1 apartment/4 days

=> 5 men -> 1 apartment/12 days

=> 25 men -> 5 apartments/12 days

So, if 25 men produce the foundations for 5 apartments in 12 days, then they will produce a foundation for ONE apartment in 12 days/5 = 2.4 days

1. 👍 8
2. 👎 0

## Similar Questions

1. ### math

"It takes Juwan exactly 35 minutes by car to get to his grandmother's. The nearest parking area is 4 minute walk from her apartment. One week he visited more often. He realized that he spent 5 hours and 12 minutes traveling to her

2. ### math

On a certain project, an employer lacked six days of working twice as many days as did his employee. If the sum of the days they worked is 42, how many days did each work?

3. ### Math

It takes 3 men to dig 2 identical trenches in 5 hours.If all the men work at same rate,how long will it take 5 men to dig 7 of these trenches?

4. ### Maths

If six men can dig a ditch in 4days. How many men can dig the same ditch in 3days?

1. ### social studies

In this excerpt from his “Report on the Destruction of the Indies,” the priest Bartolomé de Las Casas describes what happened to the American Indians on Hispaniola. Read the passage and then answer the question. “[T]hey

2. ### MATH

IT TAKES 5 MEN 7 HOURS TO DIG 9 HOLES, HOW MANY HOURS/MINUTES DOES IT TAKE 1 MAN TO DIG A HALF A HOLE?

3. ### Maths

If it takes 6 men 4h to dig a hole 6m deep,how long will it take 10 men to dig a hole 5m deep?

4. ### math

The value of 4x^3-x/(2x+1)(6x-3) when x=9999 If 7 men working 7 hrs a day for each of 7 days produce 7 units of work, then the units of work produced by 5 men working 5 hrs a day for each of 5 days is? Pls help***

1. ### College Mathematics

write the statement in symbolic form. Let p: the temperature is 90 degrees Let q: The air conditioner is working r: the apartment is hot. If the apartment is hot and the air conditioning is working, then the tempurature is 90

2. ### Maths ( urgent help )

20 men can do a piece of work in 24 days. After working for 6 days, an additional number of men are taken to finish the work in 21 days from the beginning. Find the number of additional men . . . I tried using variation method but

3. ### math

If a job takes 64 men to complete in 15 days, how many more men will take to complete the job in 12 days?

4. ### Math

Write the statements in symbolic form. Let p: The temperature is 90°. q:The air conditioner is working. r.The apartment is hot. If the apartment is hot and the air conditioner is working, then the temperature is 90°.