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tester [92]
3 years ago
8

A firm advertises for workers to address envelopes. Priscilla says she will work 100 hours. Herb will work for 80 hours. If each

can address 10,000 envelopes in the time they work, how long would it take them to address 10,000 envelopes if they work together?
Mathematics
1 answer:
snow_tiger [21]3 years ago
4 0
I'm guessing 90 hours because if you add their hours together it'll be 180 if they work together it'll be like half the time which is 90
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7th grade math help me pleaseeeee
Tom [10]

Answer:723635

Step-by-step explanation:

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3 years ago
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The length of the sides of a square measure 2x-5. The length of a rectangle measures 2x, and the width measures x + 2. For what
vladimir1956 [14]

Answer:

x = 12

Step-by-step explanation:

Perimeter of a square:

The perimeter of a square of side x is given by:

P_s = 4x

Perimeter of a rectangle:

The perimeter of a rectangle of length l and width w is given by:

P_r = 2(l + w)

The length of the sides of a square measure 2x-5.

This means that the perimeter of the square is:

P_s = 4(2x - 5) = 8x - 20

The length of a rectangle measures 2x, and the width measures x + 2.

This means that the perimeter of the rectangle is:

P_r = 2(2x + x + 2) = 2(3x + 2) = 6x + 4

For what value of x is the perimeter of the square the same as the perimeter of the rectangle?

This is x for which:

P_s = P_r

So

8x - 20 = 6x + 4

8x - 6x = 20 + 4

2x = 24

x = \frac{24}{2}

x = 12

3 0
3 years ago
Find the values of x and y.
Mekhanik [1.2K]
Woah I haven’t done this in a while but all sides have to add up to 180 and the top angle is 60 because it’s a 30, 60, 90 triangel.
3 0
3 years ago
2. Jack and Tim are racing remote-controlled cars. Jack's car travels 3.5 feet per
gregori [183]

D. 3.55s - 10 < 5.25s

7 0
3 years ago
You get a 15% raise at your job and now make $13.50 per hour. What was you previous rate of pay per hour?
Anestetic [448]
<h2>We know:</h2>

You currently make $13.50 an hour. You've earned a 15% pay raise. You want to find out your previous rate of pay per hour.


<h2>Steps:</h2>

1.) Convert 15% to a decimal, which equals 0.15


2.) Multiply your current earnings with the percentage in decimal form (0.15)

$13.50 (current pay per hour) x 0.15 (percentage in decimal form) = $2.025 (difference between your previous wage and your current wage)


3.) Subtract the difference of your previous wage and current wage with your current earnings

$13.50 (current pay per hour) - $2.025 (difference between previous and current wage) = $11.475 (previous pay per hour)


4.) Since this is talking about wage, rounding is not applicable. In other cases, your number would be rounded off to $11.48, however you can't add what you don't have, so you would have to round down.


<h2>You were previously making $11.47 an hour.</h2>
7 0
4 years ago
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