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3 years ago

What is the formula for 'percent of change'?

2 answers:

6 0

First: work out the difference (increase) between the two numbers you are comparing. Then: divide the increase by the original number and multiply the answer by 100. % increase = Increase ÷ Original Number × 100. If your answer is a negative number, then this is a percentage decrease. ( copy and paste from skillsyouneed.com )

Natasha_Volkova [10]3 years ago

6 0

Kenadiw is correct

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4 years ago

Read 2 more answers

A shirt cost $18.99 with a 6.5% sales tax. What is the final cost?

velikii [3]

Answer:

$20.22

Step-by-step explanation:

You multiply 18.99 with 0.065 to see how much extra money you have to pay. Then you add it back to 18.99 for the final cost.

3 0

3 years ago

A circle has a circumference of 907.46907.46 units. What is the diameter of the circle?

astra-53 [7]

question is wrong sir

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6 0

4 years ago

At the movie theater Leon can buy 4 large popcorns or 2 large popcorns and 3 candy bars for the same price. If the candy bars co

AlexFokin [52]

4p = 2p + 3c....p = popcorn, c = candy bars
c = 6

4p = 2p + 3(6)
4p = 2p + 18
4p - 2p = 18
2p = 18
p = 18/2
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3 years ago

PLZ ANSWER THANK YOU

NikAS [45]

Answer:

1, x/3, x^2/9, x^3/27, x^4/81

x^4 +3x^3+9x^2+27x+81

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Step-by-step explanation:

(x/3) ^i

i=0 (x/3)^0 = 1

i=1 (x/3)^1 = x/3

i=2 (x/3)^2 = x^2/3^2 = x^2/9

i=3 (x/3)^3 = x^3/3^3 =x^3/27

i=4 (x/3)^4 = x^4/3^4 =x^4/81

The sum is

1+(x/3) + x^2/9 + x^3/27 + x^4/81

We need a common denominator of 81

1*81/81 + x/3 *27/27 + x^2/9 *9/9 + x^3/27 *3/3 + x^4/81

81+27x + 9x^2 + 3x^3 +x^4

----------------------------------------

Rewriting from largest power to smallest power

x^4 +3x^3+9x^2+27x+81

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6 0

3 years ago