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Elodia [21]
3 years ago
5

The wheels on Reggie’s bike each have a 20-in. diameter. His sister’s mountain bike has wheels that each have a 26-in. diameter.

To the nearest inch,
how much farther does Reggie’s sister’s bike travel in one revolution than Reggie’s bike?
Mathematics
1 answer:
ExtremeBDS [4]3 years ago
6 0
The answwer is 30 inches
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There are 48 students in a certain class, 25% of this are girls, How many<br> boys are in the class?
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Answer:

There are 36 boys

Step-by-step explanation:

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Simplify. 3x - 7y - (-2x) - y <br>5x + 8y <br>5x - 8y <br>x-8y<br>x-8y​
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Answer:

the first one is 14xy+3x-y

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The slope of the line is positive
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Find the area of the blue sector. Use 3.14 for pi and round to the nearest hundredth.
Anni [7]
Answer:

25.64 in^2

Explanation:

<span><span>60360</span>⋅π<span>r2</span></span>, where <span>r=7</span>

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4 0
3 years ago
Suppose the average yearly salary of an individual whose final degree is a masters is $46 thousand less than twice that of an in
zepelin [54]

Answer:

  • <em><u>average yearly salary of an individual whose final degree is a masters:</u></em><u> $ 66 thousand</u>

<u></u>

  • average yearly salary of an individual whose final degree is a bachelors:<u> $ 56 thousand</u>

Explanation:

You can set a system of equation using the following steps:

1. Name the variables:

  • average yearly salary of an individual whose final degree is a masters: x

  • average yearly salary of an individual whose final degree is a bachelors: y

2. Set the equations that relate the variables:

  • the average yearly salary of an individual whose final degree is a masters is $46 thousand less than twice that of an individual whose final degree is a bachelors:

        equation (1): x = 2y - 46

  • combined, two people with each of these educational attainments earn $122 thousand:

         equation (2): x + y = 122

3. Solve the system:

  • x = 2y - 46 . . . equation (1)
  • x + y = 122 . . . equation (2)

Substitute equation (1) into equation (2)

  • 2y - 46 + y = 122

Solve for y:

  • 3y = 122 + 46
  • 3y = 168
  • y = 168 / 3
  • y = 56 (this means that the average yearly salary with a bachelors degree is $ 56 thousand).

Subsitute the value on y in equation 1, to find the value of x:

  • x = 2y - 46 = 2(56) - 46 = 112 - 46 = 66.

Thus, the average yearly salary of a person with a masters degree is $ 66 thousand.

4 0
3 years ago
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