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alexdok [17]
3 years ago
7

How much is a 20% increase to $771?

Mathematics
2 answers:
Softa [21]3 years ago
7 0

Answer:

$925.20

Step-by-step explanation:

To get the answer for this particular problem you would do the following:

  1. Multiply the original price (771) by the percentage that is being added. REMEMBER! Since it's a percentage, you have to turn it into a decimal by moving the decimal over two places. So, 20% would become .20. And you always multiply by the DECIMAL you just made and NOT the actual percentage.
  2. Multiplying these two, you would get 154.20. This is the amount that is being added to the original price, so you'd have to add $154.20 to the original price of $771.
  3. You get your answer! $771 + $154.20 gives you $925.20. So, your end price is $925.20.

And, if you were asking for how much the increase would be, then it would increase by $154.20, as said in step two.

Irina-Kira [14]3 years ago
5 0

Answer:

$154.20

Step-by-step explanation:

To find a percent of a number, multiply the percent by the number.

20% of $771 =

= 20% * $771

= 0.2 * $771

= $154.20

The increase is $154.20

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~P -> Q: "if it is not fall, then the leaves change colors"

~P -> ~Q: "if it is not fall, then the leaves don't change colors"

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Explanation:

Simply replace each letter with the corresponding definition. We replace each P with "it is fall" and each ~P with "it is not fall". The squiggly line means "not". The same idea applies with Q and ~Q.

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Answer: Choice A) 134

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Explanation:

AB = CD

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8x-4x = 24

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==========================================

Problem 20

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Explanation:

(anglePQR)+(angleRQS) = 90

(12x-2)+(6x+2) = 90

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x = 5

angle TQU = 90

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==========================================

Problem 21

Answer:  99

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Explanation:

The remote interior angles add to the exterior angle (remote interior angle theorem)

(angle RPQ) + (angle PQR) = angle PRS

(3x-29) + (7x-42) = 6x-3

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angle PRS = 6x-3

angle PRS = 6*17-3

angle PRS = 99

==========================================

Problem 22

Answer: 116

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Explanation:

Refer to the diagram below.

Solve 105+x = 180 to get x = 75

Solve 135+y = 180 to get y = 45

Solve x+y+z = 180 to get z = 60

Solve z+82+p = 180 to get p = 38

Solve p+78+q = 180 to get q = 64

Solve q+r = 180 to get r = 116

==========================================

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Explanation:

We use a variation of the triangle inequality theorem here.

If p is the missing side length, then

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The side XY cannot be 4 inches and it cannot be 44 inches either.

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Explanation:

Same idea as problem 23

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So we'll select values between 14 and 34, excluding each endpoint. Those values are x = 16, 18, 24, 26

In other words, only 12 and 34 are non-answers.

==========================================

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Answer: C) 84 degrees

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Explanation:

The given exterior angle is 152 degrees

Subtract that from 180 to get the adjacent interior angle 180-152 = 28

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D+E+B = 180

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B = 180-96

B = 84

This is the measure of angle DBE

This is also the measure of angle ABC because the two angles are vertical angles.

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