Forty is 25% of what number?

Answers

Answer 1
Answer: Since it is 25% all you would have to do is mutiply it by 4 to get 160. So in conclusion 160 is the answer.
Answer 2
Answer: 40 is 25% of 160 because 25% is the same as 1/4 and 1/4 of 160 is 40

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I need to know what is 83÷6,270

Factor the binomial or identify it as prime.2z4 – 2

A. 2(z2 + 1)(z2 – 1)
B. 2(z2 + 1)(z – 1)(z + 1)
C. Prime
D. 2(z2 + 1)2

Answers

Answer:

The correct answer is B,

Step-by-step explanation:

Since the higher value of z's power, is 4, an even number, and the second number is negative, we can think that this binomial is made of a difference of squares, so that is what we are going to factorize.

First, extract the common number (if any), the number 2, we have now>

2*(z^(4)-1)

This is convenient since "1" is a wonderful number that has this feature>1^(n)= 1 No matters what n's value is,

so the first equation 2*(z^(4)-1) can be written as (2*(z^(4)-1)=2*((z^(2))^(2)-1^(2))=2*(z^(2)-1)*(z^(2)+1)

The later termn, can also be factorized, using the same as befre.

(z^(2)-1)=(z-1)*(z+1)

Remember that z^(4)=(z^(2))^(2)

the answer to this problem is A
:)

What is the area of the figure shown below?

Answers

i would help u but theres no figure below

Find the slope of the ski run that descends 15 feet for every horizontal change of 24 feet

Answers

slope= change in y (vertical)/change in x (horizontal)

vertical=15
horizontal=24 

slope= 15/24

**We can reduce this by dividing top and bottom by 3:

slope= 5/8

34 - (6.78+2.54)= how do you solve this

Answers

First add the numbers inside the parenthesis.
You are left with 34-9.32
Then subtract 9.32 from 34 and you get 24.68
Add 6.78 and2.54 and then subtract it and get yo

The official length for a race is 26.2 miles how many yards and feet long is the race

Answers

There are 5280 feet per every mile.
There are 3 feet per yard. So there are 1760 yards per mile.
26.2 times by 1760 = 46,112 yards
2602 times by 5280 = 138,336 feet
Hey There!

1mile=1760yard

1mile=5280feets

To find how many yards is in 26.2 miles you multiply 26.2*1760=46112 yard

To find how many feet is 26.2 miles you multiply 26.2*5280ft=138336 feet

26.2 miles as feet= 138336

26.2 miles as yard =46,112

Have A Brainly Day :)


Matthew goes hiking every 12 days and swimming every 6 days. He did bothkinds of exercise today. How many days from now will he go both hiking and
swimming again? Can you please explain how you do this?

Answers

The next 18 days because your trying to see how many days it is until he does BOTH