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vovangra [49]
3 years ago
15

-px+r=-8x-2 solve for x.

Mathematics
2 answers:
tekilochka [14]3 years ago
8 0

Answer:

(2+r)/(p-8) = x

Step-by-step explanation:

-px+r=-8x-2

Add px to each side

-px+r+px=-8x+px-2

r = -8x+px -2

Add 2 to each side

2+r = px-8x

Factor out an x

(2+r) = x(p-8)

Divide each side by (p-8)

(2+r)/(p-8) = x(p-8)/(p-8)

(2+r)/(p-8) = x

True [87]3 years ago
7 0

Answer:

x = x = \frac{2+r}{p-8}

Step-by-step explanation:

Move all terms to the left side and set equal to zero. Then set each factor equal to zero.

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Answer:

Answer is B

Step-by-step explanation:

This is because there were 14 chocolate cupcakes to 21 vanilla cupcakes which in ratio form is 14 to 21 and simplified is 2 to 3

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marin [14]

Answer:

34 i think i got it really wrong but...

Step-by-step explanation:

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3 years ago
Please help to answer the questions from the picture!!!
sergey [27]
A) 13 degrees because it would be 90-77
If two angles are complementary, then the two angles add up to 90 degrees.
If angle A is 77, then the complement would be 90-77 or 13 degrees.

b) The complement of the complement of the angle is the angle itself.
Say the angle A is 30 degrees. It's complement is 90-30 or 60 degrees.
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7 0
3 years ago
A collection of 33 coins having dimes quarters and nickels, there are 3 times more nickels then dimes and half the amount of dim
zloy xaker [14]

Answer:

Each coins are quarters of <u>6</u>, nickels of <u>18</u> and the dimes of <u>9</u>.

Step-by-step explanation:

<u><em>There is a mistake in question.</em></u>

The question must be:

A collection of 33 coins having dimes quarters and nickels, <u>there are 3 times as many nickels as quarters, and one-half as many dimes as nickels</u>, all of the coins equal $3.30 how many coins of each kind are there?

Now, to find the number coins of each.

Let the quarters be x.

Nickels be 3x.

And the dimes be \frac{3x}{2}.

So, the total collection of coins are:

x+3x+\frac{3x}{2} =33.

On adding the fractions we get:

\frac{2x+6x+3x}{2} =33

\frac{11x}{2} =33

Multiplying both sides by 2 we get:

11x=66

Dividing both sides by 11 we get:

x=6.

Thus, quarters = 6.

Nickels = 3x=3\times 6=18.

Dimes = \frac{3x}{2} =\frac{3\times 6}{2} =\frac{18}{2}=9 .

Therefore, each coins are quarters of 6, nickels of 18 and the dimes of 9.

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3 years ago
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Nikolay [14]

Answer:

from the image above

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angle AEB = angle AEO ( each 90°)

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similarly,

BC = DC ( given)

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