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Vlad1618 [11]
3 years ago
14

State what kind of variation you have, then solve the problem. A 15-person road crew is scheduled to finish repairing a highway

in 8 days. On the morning of the fifth day, several new workers join the crew and together they complete the remaining repairs in 2 days. How many new workers were there?
Mathematics
1 answer:
Veseljchak [2.6K]3 years ago
4 0
<span>==> 6(15+x) = 120
==> 15+x = 20 
==> x = 5.
Therefore five new workers joined the crew.</span>
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The fuel for a chain saw is a mix of oil and gasoline. The ratio of ounces of oil to gallons of gasoline is 4:12. There are 24 g
Airida [17]

Answer:

there are 8 gallons of oil

8 0
4 years ago
Which of the following is equal to (2x/3 - 7) + 7?. A. (2x - 7) + 21. B. 2x - 21/3. C. 3x/2. D. 2x/3.
Setler79 [48]

For this case we have the following expression:

(\frac{2x}{3} - 7) + 7

What we must do in this case is to use one of the properties of the sum.

In this case, we must use the associative property.

The associative property states:

(a + b) + c = a + (b + c)

We have then:

(\frac{2x}{3} - 7) + 7 = \frac{2x}{3} + (- 7 + 7)

Simplifying we have:

(\frac{2x}{3} - 7) + 7 = \frac{2x}{3} + (0)

(\frac{2x}{3} - 7) + 7 = \frac{2x}{3}

Answer:

the following is equal to (2x / 3 - 7) + 7

D. 2x / 3.

7 0
3 years ago
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PLZZ HELP I WILL MODERATE SPAM ANSWERS AND I WILL GIVE BRAINLIEST
lesantik [10]

Answer:

49.0

Step-by-step explanation:

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3 years ago
FIND THE FOLLOWING USING THE GIVEN TRIANGLE...PLEASE HELP ME SUCK AT MATH...SOS!!! ASAP!!!!
SIZIF [17.4K]

perimeter = 20 +20 +24 = 64 feet

 area = 12^2 + x^2 = 20^2

144 + x^2 = 400

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The results of a recent survey of 1500
ddd [48]

Answer:

A) <u>7 : 13</u> is the ratio .

B) <u>69.65 million </u>approve of George W. Bush.

Step-by-step explanation:

Given:

The results of a recent survey of 1500  American adults show that 525 approve of the   job that President George W. Bush is doing  and 975 do not approve.

Now, to find the ratio of the people approve to those that do not. And number of people approve of George W, if there are 199 million adults in the United States.

<h2>A)</h2>

People approve of the job = 525.

People do not approve of the job = 975.

So, the ratio of that approve to those that do not:

525:975

=\frac{525}{975}

<em>On simplifying it:</em>

=\frac{7}{13}

=7:13.

Thus, the ratio is 7 : 13.

<h2>B)</h2>

If the adults in the United States is 199 million.

Let the people approve be x.

According to survey 525 out of 1500 approve of the job.

So, 525 is equivalent to 1500.

Thus, x is equivalent to 199,000,000. (1 million = 1,000,000.)

Now, to solve by using cross multiplication method:

\frac{525}{1500} =\frac{x}{199,000,000}

<em>By cross multiplying we get:</em>

<em />104,475,000,000=1500x<em />

<em>Dividing both sides by 1500 we get:</em>

69,650,000=x\\\\x=69,650,000.

Thus, number of people approve are 69.65 million.

Therefore, 69.65 million approve of George W. Bush.

8 0
3 years ago
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