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3 years ago

Please help PLEASE Which equations are equal to this equation? 14(8x + 56) = 20

Mathematics

2 answers:

kvasek [131]3 years ago

7 0

Answer:

Here are a few equivalent equations:

112x + 784 = 20

112x = -764

x = -6.82

Step-by-step explanation:

14(8x + 56) = 20

Multiply

112x + 784 = 20

Subtract 784 from both sides of the equation

112x = -764

x = -6.82

Hope this was useful to you!

TEA [102]3 years ago

3 0

Answer:

x = - 191/28

Step-by-step explanation:

14 (8x + 56) = 20

112x + 784 = 20

112x = 20 - 784

112x = - 764

x = - 764/112

x = - 191/28

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iren2701 [21]

Y = mx + c
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3 years ago

The height of a triangular window is 3 feet less than its base. The area the window is 20 ft.? find the dimensions of the window

Ivenika [448]

Let us assume base of the window = b feet.

Height is 3 feet less than base, that is = (b-3).

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Plugging values in formula, we get

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$\mathrm{Multiply\:both\:sides\:by\:}2$

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$b^2-3b-40=0$

Factoring quadratic, we get

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b=-5

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<h3>Therefore, base of the triangle = 8 feet and height = 8 -3 = 5 feet.</h3>

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3 years ago

What is the difference between surface area and volume? <br> formulas please!

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3 years ago

Read 2 more answers

A bird at the top of a tree looks down at a field mouse with an angle of depression of 65Á. If the field mouse is 30 meters from

Dafna11 [192]

Correct answer is 33.1 m.

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3 years ago

If 2 over 5 tons of concrete covers 5 over 6 of a wall, how many tons of concrete are required to cover the entire wall?

Dominik [7]

Answer:

A. 12.25 tons

Step-by-step explanation:

We will let x represent the amount required to cover the entire wall.

We can divided 2/5 by 5/6 to solve for x

2/5 divided by 5/6=x

When you divide by a fraction, you can always multiply by the reciprocal (flipped number).

Our new equation is:

2/5·6/5=12/25

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