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Burka [1]
3 years ago
8

What is the value of r in the equation 4r − 8 = 5r + 12? −20 −1 1 20

Mathematics
2 answers:
Montano1993 [528]3 years ago
4 0
4r-8=5r+12\\-8-12=5r-4r\\-20=r
Thus your answer is -20.
Readme [11.4K]3 years ago
3 0
The answer is -20. if you move all of the numbers with r to the right and all of the numbers without r to the left, you get r = -20.
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The double number line shows that 3 back-to-school packages contain 36 pencils.
lord [1]

Answer:

The answer is A

Step-by-step explanation:

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7 0
3 years ago
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Alla [95]

Answer:

First one is 41

Second one is 87

Step-by-step explanation:

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6 0
3 years ago
Jefferson Middle School needs to see a 300% gain in PTO fundraiser
Ronch [10]

Given parameters:

Percentage gain = 300%

Selling cost last year = $2420

Unknown:

Selling cost this year  = ?

Solution:

To solve this problem;

     Profit percent  = \frac{Selling cost this year - Selling cost last year}{Selling cost last year} x 100

      300 = \frac{S - 2420}{2420}  x 100

      3 = \frac{S - 2420}{2420}

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          S = $9680

To make a 300% gain, Jefferson Middle school needs a $9680 from fundraiser sales this year.

6 0
3 years ago
Which is the best estimate for the percent equivalent of 7/15
zzz [600]
An estimate for the percent equivalent of 7/15 is 46% i think
7 0
3 years ago
Read 2 more answers
Clara writes the equation (x – 13)(x + 8) = 196 to solve for the missing side length of a triangle represented by the factor x +
Kitty [74]
<span>(x – 13)(x + 8) = 196
</span>x * x + x * 8 - 13 * x - 13 * 8 = 196
x² + 8x - 13x - 104 = 196
x² - 5x - 104 - 196 = 0
x² - 5x - 300 = 0

The missing side length is 28

3 0
3 years ago
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