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Reptile [31]
2 years ago
8

Shane plans on finding a summer job so he can earn enough money to buy a new laptop that costs $595. He has already saved $150.

If Shane finds a summer job that pays him $7.50 an hour after taxes are withheld, what is the minimum number of hours he will have to work in order to purchase the laptop?
Mathematics
1 answer:
Allisa [31]2 years ago
4 0
The equation would be $7.50x+150=595. Find x, which is the number of hours he has to work.
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If n(A-B)=18,n(AuB)=70 and n(AnB)=25 then find n(B)
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n(A-B) denotes elements which are in A but not in B

n(Au B) denotes elements in A and B

n(AnB) denotes elements that are common in A and B

Now I will add one more set

n(B-A) which denotes elements in B but not in A

So, n(AuB) = n(A-B) + n( B-A) +n(AnB)

70 = 18 +n(B-A) + 25

70 = 43 + n(B-A)

n(B-A) = 70-43

n(B-A) = 27

So, n(B) = n( B-A) + n( AnB)

= 27+25

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2 years ago
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posledela

Answer:

The answer is below

Step-by-step explanation:

There are various tips or suggestions on how others can represent real-life situations using rational functions​, one of them is the application of a work problem formula.

By using the work problem formula, one can measure the time it will take different people working at different speeds to complete the work. With the formula w =r*t. Where w = work done, r = rate of work donee, and t = time

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Answer:

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Step-by-step explanation:

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We are given that the conclusion is to reject the null​ hypothesis.

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Step-by-step explanation:

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