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Verizon [17]
2 years ago
9

Chris and Ed decide to help each other by doing repairs on each other's houses. Chris is a carpenter and Ed is an electrician. C

hris does carpentry work on his house as well as on Ed's house. Similarly, Ed does electrical repairs on his house and on Chris's house. When they are all finished they realize that Chris spent 57% of his time on his own house and 43% of his time on Ed's house, and that Ed spent 52% of his time on his own house and 48% of his time on Chris's house. If they originally agreed that the total of the work should amount to $15000, how much money should each get for their work
Mathematics
1 answer:
OLga [1]2 years ago
6 0

Answer:

Chris gets $7,466.16 for his work.

Ed gets $7,533.83 for his work.

Step-by-step explanation:

Let's first divide the total money for the work equally between both houses.

So there are $7500 worth of work being done on Ed's house, and another $7500 worth of work being on Chris's house.

We will also see how much total time was spent on each house for the work:

Chris's house = Work done by chris + work done by Ed

Chris's house = 57% + 48% = 105%

Ed's house = Work done by Ed + work done by Chris

Ed's house = 52% + 43% = 95%

We should now split the money available for each house between Chris and Ed depending on the amount of work they did. So we will multiply $7500 for each house to the ratio a person worked on them.

This makes Chris's earning to:

Chris's earning = 7500 * (57/105) + 7500 * (43/95) = $ 7,466.16

Ed's earning = 7500 * (48/105) + 7500 * (52/95) = $ 7,533.83

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What is the pattern in the values as the exponents increase? Powers of 2 Value 2 Superscript negative 5 StartFraction 1 Over 32
Tatiana [17]

Answer:

(D)Multiply the previous value by 2

Step-by-step explanation:

\left|\begin{array}{c|c}$Powers of 2&Value\\2^{-5}&\frac{1}{32}\\\\2^{-4}&\frac{1}{16}\\\\2^{-3}&\frac{1}{8}\\\\2^{-2}&\frac{1}{4}\\\\ 2^{-1}&\frac{1}{2}\\\\2^{0}&1\end{array}\right|

From the given table, we observe that the negative power of 2 reduces by 1 at each step.

2^{-5}X2=2^{-4}\\2^{-4}X2=2^{-3}\\2^{-3}X2=2^{-2}

Therefore, as the exponents increase, we multiply the previous value by 2 to obtain the next value.

The correct option is D.

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2 years ago
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Diane owes $11901.00 to the bank after completing her college degree. With the funds from her new job she is paying back $153.00
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On average, parents pay 10% of the total amount due with borrowed funds; students cover 14% with student loans and other debt-forming sources. The remaining 29% of the cost of college is mostly covered by scholarships and grants won by the student: 17% by scholarships and 11% by grants.
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Robbie went parasailing. his sail reached 141 feet. it descended 22 feet before staying in the same place for 10 minutes. what w
mash [69]
141 minus 22 equals 119
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2 years ago
Without properly working spark plugs, a vehicle will not run. For a specific vehicle, the spark plugs are supposed to have a gap
Salsk061 [2.6K]

Answer:

<em>The probability that the spark plugs are supposed to have a gap between 3.9mm and 4.3mm.</em>

<em>P(3.9≤X≤4.3)  = 0.9922</em>

Step-by-step explanation:

<u><em>Step(i):-</em></u>

<em>Given that the mean of the Normal distribution = 4.1mm</em>

<em>Given that the standard deviation of the Normal distribution = 0.0075mm</em>

<em>Let 'X' be the random variable in a normal distribution</em>

Given that X₁ = 3.9mm

Z_{1} = \frac{X_{1} -mean}{S.D}

Z_{1} = \frac{3.9 -4.1}{0.075} =  -2.666

Given that X₂ = 4.3mm

Z_{2} = \frac{X_{2} -mean}{S.D}

Z_{1} = \frac{4.3 -4.1}{0.075} =  2.666

<u><em>Step(ii):-</em></u>

<em>The probability that the spark plugs are supposed to have a gap between 3.9mm and 4.3mm.</em>

<em>P(3.9≤X≤4.3) = P(-2.666≤Z≤2.666)</em>

<em>                      = P(Z≤2.666)-P(Z≤-2.666)</em>

<em>                     = 0.5 +A(2.666) - (0.5-A(2.666)</em>

<em>                    = 2 × A(2.666)</em>

<em>                  = 2×0.4961</em>

<em>                  = 0.9922</em>

<u><em>Final answer:-</em></u>

<em>The probability that the spark plugs are supposed to have a gap between 3.9mm and 4.3mm.</em>

<em>P(3.9≤X≤4.3)  = 0.9922</em>

<em></em>

3 0
1 year ago
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emmasim [6.3K]

Answer:

bench at 1/3 is at 0.7 miles

bench at 2/3 is at 1.4 miles

Step-by-step explanation:

Given

Path length, x= 2.1 miles

It has benches at 1/3 And 2/3 of the distance from beginning to end of the path

1/3 of the distance from beginning to end of the path= 1/3x

Putting value of x in above we get:

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                  =4.2/3

                  =1.4

The bench at 2/3 of the distance is at 1.4 miles from the beginning to end of path!

5 0
2 years ago
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