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4 years ago

It took two people to complete carpeting in 10 days. How many more workers need to be hired to complete the same job in 4 days?

Mathematics

2 answers:

IRISSAK [1]4 years ago

4 0

so two fellows did all the carpeting in 10 days.

now, how long did "1" fellow work only? well, it worked for 10 days.

how long did the other fellow work for? well, it was working alongside the first one, and it was there for also 10 days.

so the two guys working together, really did 10+10 = 20 "days worth of work". So that the whole carpeting job can be done in 20 "days worth of work".

now if we want to finish it in 4 days, 20 ÷ 4 = 5.

so if we hire 5 guys, since each one will do 4 days worth, 5*4 = 20 <- the whole job.

tekilochka [14]4 years ago

3 0

Answer:

5 worker

Step-by-step explanation:

Two men complete carpeting = 10 days

Total time taken to complete the work= Number of men× Number of days

Total time taken to complete the work= 2×10

Total time taken to complete the work= 20

Let x number of men complete the work in 4 days

According to question

4×x= 20

x= 20÷4

x=5 men

Number of 5 worker are required to complete the work in 4 days

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-104=-8(k+8) <br><br> K = ?<br> Solution please if can?

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Let's solve this question by step by step.

Layout equation.

−104=−8(k+8)

Step 1: Simplify both sides of the equation.

−104=−8(k+8)

−104=(−8)(k)+(−8)(8)(Distribute)

−104=−8k+−64

−104=−8k−64

Step 2: Flip the equation.

−8k−64=−104

Step 3: Add 64 to both sides.

−8k−64+64=−104+64

−8k=−40

Step 4: Divide both sides by -8.

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The answer for this problem is k=5.

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3 years ago

What is the 32nd term of 311, 305, 299

nata0808 [166]

Answer:

503

Step-by-step explanation:

For an arithmetic sequence, the n-th term is found by

$a_n = a_1 + (n - 1)d$

To find $d$ (the common difference) we can simply subtract one of the terms by the last, for example:

$d = 299 - 305 \\d = -6 \\$

The common difference must be the same throughout the entire sequence, so we can do it once more just to be sure:

$d = 305 - 311\\d = -6$

We also have to know that $a_1$ stands for the first term of the sequence, which in this case is 311.

Now that we know this, let's find the 32nd term

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Good luck!

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