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Radda [10]
3 years ago
9

How to solve -5(7x/x+5) / (7x/x+5) -7

Mathematics
1 answer:
g100num [7]3 years ago
6 0
What in the world is that
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The population in a small city increased from 1250 people to 2780 people. What is the percent of increase in the number of peopl
Zarrin [17]
<h3>Answer: Choice B) 122%</h3>

==========================================

Work Shown:

A = 1250 is the initial amount

B = 2780 is the new amount

C = percent change = unknown for now

The formula to use is

C = [ (B-A)/A ] * 100

to calculate the percent change.

Basically we calculate the change (B-A) first and then divide that over the original amount A to compute the decimal form of the answer, which is then converted over to percentage form. The "100" tacked on at the end is what converts from decimal to percent form.

---------

C = [ (B-A)/A ] * 100

C = [ (2780 - 1250)/1250 ] * 100

C = (1530/1250)*100

C = 1.224 * 100

C = 122.4%

C = 122%

---------

The positive C value indicates we have a percent increase. If C were negative, then we'd have a percent decrease.

6 0
3 years ago
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You worked 7 3/4 hours total in the past two days and plan to work 9 3/4 hours total in the next two days how many hours will yo
Aloiza [94]
You would work
17 \times \frac{1}{2} \: hours
3 0
2 years ago
Which equation is the inverse of y = 100 – x2?
sdas [7]

Answer:

1

Step-by-step explanation:

\tt\displaystyle y = 100 - x^2\to\{y = x\}\\\\x = 100 - y^2\to\\\\y^2 = 100 - x\to\\\\y = \pm\sqrt{100 - x}

8 0
3 years ago
Solve for x: 6/x + 2/2x = 8/x + 1/3
KIM [24]
Ans: x=1.590667 or x= -1.257334

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3 years ago
jackie needs 0.7 meters of canvas material to make a​ carry-all bag for his wheelchair. If canvas is $4.18 per meter, how much w
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4.18x.7= 2.926

So $2.93 for .7 meters of fabric
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3 years ago
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