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3 years ago

88 Is 20 percent of what number?

Mathematics

1 answer:

ValentinkaMS [17]3 years ago

5 0

Answer:

440

Step-by-step explanation:

You can write the problem statement in math terms as ...

88 = 0.20 × (what number)

To solve this, divide by the coefficient of the variable, 0.20.

88/0.20 = (what number)

440 = (what number)

The number you're looking for is 440.

_____

Of course you know that 20% = 20/100 = 0.20.

(% is a shorthand way to write /100.)

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8y=84 this is the last question for my big test help

Zolol [24]

Answer:

84÷8

Step-by-step explanation:

just divide both sides by 8 so the 8÷8 will cancel out and you have y=84÷8

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3 years ago

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2(x+5)-3=-(2x+1)+1<br> What is the solution for x???

netineya [11]

Hi there,

2 (x +5) - 3 = -(2x + 1) + 1
2x + 10 - 3 = -2x - 1 + 1
2x + 10 - 3 = -2 - 1 + 1
2x + 7 = -2x
2x + 2x = -7
4x = -7

Hence, X= -7/4

Hope this helps :)

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3 years ago

Want 20 POINTS easy answer these questions

horsena [70]

148 divided by 28= 5.28

220 divided by 12= 18.33

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4 years ago

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One month Mr. Moore made 3 withdrawals of $20 and 1 withdrawal for $80 from his account. How did the withdrawals change the amou

Flura [38]

Answer:

It decreased the amount of money in his bank account by $100

Step-by-step explanation:

When you withdraw money you you are taking money away so you are decreasing the amount of money in Mr. Moore's bank account by $100 dollars.

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3 years ago

A statistics professor gives a survey to each of the 20 students in an introductory statistics course. The survey asks the stude

tekilochka [14]

Answer:

$B2 = 0.465$ --- Population standard deviation

$C2 = 0.216$ --- Population Variance

Step-by-step explanation:

Given: Wake-up time data

Required: Determine the population standard deviation and the population variance using Excel

First, enter the given data in Excel

For this question, I entered the data in cell A2 through cell A21

Cell B2 and Cell C2 were used to hold the results of the population standard deviation and the population variance, respectively.

In cell B2, the formula to use is:

=ROUNDUP(STDEV.P(A2:A21),3)

The round function rounds the result to 3 decimal places while STDEV.P calculates the population standard deviation.

So, the result is:

$B2 = 0.465$

In cell C2, the formula to use is:

=ROUND(VAR.P(A2:A21),3)

The round function rounds the result to 3 decimal places while VAR.P calculates the population variance.

So, the result is:

$C2 = 0.216$

<em>See attachment for Excel file</em>

Download xlsx

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3 years ago