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3 years ago

Why is the percent increase from 45 to 75 not equal to the percent decrease from 75 to 45? Select three options.

Mathematics

1 answer:

salantis [7]3 years ago

6 0

Answer:

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.

Step-by-step explanation:

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What is the greatest common factor c^2d^2

Brums [2.3K]

Answer:

Step-by-step explanation:

Since there are no common prime factors, the only common factor for c²d² is 1, therfore it stays as is, c²d².

I am joyous to assist you anytime.

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3 years ago

PLEASE ANSWER ASAP!!

ExtremeBDS [4]

Answer:

Fred paid US$ 310 to Social Security as a payroll tax

Fred paid US$ 72.50 to Medicare as a payroll tax

Fred paid 18% of his income to the Federal government as an income tax

Fred paid 5% of his income to the state government as an income tax

Step-by-step explanation:

Fred's earnings in June were $ 5,000

A. Payment to Social Security

5,000 * 6.2% = 5,000 * 0.062 = 310

B. Payment to Medicare

5,000 * 1.45% = 5,000 * 0.0145 = 72.50

C. Federal Income Tax

900/5,000 = 0.18 = 18%

D. State Income Tax

250/5,000 = 0.05 = 5%

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3 years ago

If you wanted to write a word problem about how much money the fourth grade class collected at their bake sale, what information

Rina8888 [55]

If you know the perimeter of a rectangle but not its length or width can u calculate its area

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3 years ago

The number of Apple iPods sold in 2009 was 54.13 million. That number decreased approximately linearly to 26.38 million iPods so

AleksandrR [38]

Answer:

$A(t) = -6.9375t + 81.88$ is the amount, in millions, for the number of Apple iPods sold in t years after 2005.

Step-by-step explanation:

Linear function:

A linear function has the following function:

$y = mx + b$

In which m is the slope(the value that y changes by when x changes by 1) and b is the y-intercept(the initial value of the output).

Finding the value in 2005:

This is b.

The number of Apple iPods sold in 2009 was 54.13 million. That number decreased approximately linearly to 26.38 million iPods sold in 2013.

So in 4 years, it decreased from 54.13 - 26.38 = 27.75 million.

So the value in 2005 should also be 27.75 million more than in 2009, that is 54.13 + 27.75 = 81.88. So

$y = mx + 81.88$

Using A for y and t for x

$A(t) = mt + 81.88$

Finding the slope:

When we have two points, the slope is given by the change in the output divided by the change in the input.

In 4 years, the amount decrease by 27.75 million. So

$m = -\frac{27.75}{4} = -6.9375$

$A(t) = -6.9375t + 81.88$ is the amount, in millions, for the number of Apple iPods sold in t years after 2005.

6 0

3 years ago

F a particular galaxy has a total mass of 10 to the 58 grams and the average star in that galaxy has a mass of 10 to the 34 gram

atroni [7]

Answer:

$10^{24}=1000,000,000,000,000,000,000,000$ stars.

Step-by-step explanation:

We have been given that a particular galaxy has a total mass of $10^{58}$ grams and the average star in that galaxy has a mass of $10^{34}$ grams. We are asked to find the number of stats in the galaxy.

To find the number of stats in the given galaxy, we will divide total mass of galaxy by mass of an average star in the galaxy as:

$\text{The number of stats in the given galaxy}=\frac{10^{58}}{10^{34}}$

Using exponent property $\frac{a^m}{a^n}=a^{m-n}$ , we will get:

$\text{The number of stats in the given galaxy}=10^{58-34}\\\\\text{The number of stats in the given galaxy}=10^{24}\\\\\text{The number of stats in the given galaxy}=1000,000,000,000,000,000,000,000$

Therefore, there are approximately 1000,000,000,000,000,000,000,000 stars in the given galaxy.

5 0

3 years ago