What number is 80% of 90? thanks

Answers

Answer 1
Answer: um i think that it is hard but i believe that the answer is 76%

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Can someone help in math 1. Simplify the expression 8 squared plus 9 left parenthesis 12 divided by 3 times 2 right parenthesis minus 7. Explain each of your steps. 2. Using the numbers and symbols, solve 7x = 42

What is the answer to this

Answers

Answer:

48 cups is the answer divide 64 by 4 then multiply that number u get by 3

Answer: 48 cups are

Step-by-step explanation: divide 64 by 4 which is 16 now multiply 16 by 3

Find two square roots of 121/49

Answers

The square root of the given fraction 121 / 49 will be 11 / 7.

What is a square root?

A number y such that y² = x, or a number y whose square is x, is referred to as the square root of a number x in mathematics.

Given that in mathematics, a number r is said to be the nth root of a number x if it is raised to the power n.

The square root of the given number will be calculated as below:-

Square root = √( 121/49 )

Square root = 11 / 7

Therefore, the square root of the given fraction 121 / 49 will be 11 / 7.

To know more about a square root follow

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the square root 121/49 is 847

The product of 84.12 and which number will have three decimal places?A. 4.22
B. 10.51
C. 14.163
D. 19.3

Answers

Answer:

c. 14.163

Step-by-step explanation:

We are given a number 84.12 and we need to find a number that when multiplied with 84.12 will give a product with three decimal places. Let's analyze each option

mark has 312 books in his bookcases. He has 11 times as many fiction books as nonfiction books. How many fiction books does Mark have? please tell me how you got answer step by step? thank you

Answers

Answer: 286


Step-by-step explanation:

Let the number of non fiction books be 'x'

Then the number of fiction books = 11x

Total books in Mark's bookcase= 312

According to the given situation the equation will be

x+11x=312\n\Rightarrow12x=312..............[\text{combine like terms}]\n\Rightarrow\ x=26.......[\text{divide 12 on both sides}]

Hence, the number of non fiction books=26

and the number of Fiction books =11*26=286

Let number of non/fraction books =x
Then number of fiction books=11x
So, we form the equation x+11x=312
12x=312 x=26 so mark has 26*11=286 fiction books

The formula for the perimeter of a rectangle is P = 2l + 2w, where P is the perimeter, l is the length, and w is the width. Solve for w.

Answers

Answer:

(P-2l)/2 =w

Step-by-step explanation:

P = 2l + 2w

Subtract 2l  from each side

P -2l = 2l-2l + 2w

P-2l = 2w

Divide by 2

(P-2l) /2 = 2w/2

(P-2l)/2 =w

Answer:

Step-by-step explanation:

What symbol do you use for square root on pc?

Answers

For this case we must find the values of "a" and "b" that make the expressions equivalent:

We have:

\sqrt {\frac {126xy ^ 5} {32x ^ 3}} =

We take common factor "2" from the numerator and denominator:

\sqrt {\frac {2 * (63xy ^ 5)} {2 * (16x ^ 3)}} =

Eliminating common factors of numerator and denominator:

\sqrt {\frac {63y ^ 5} {16x ^ 2}} =

So, we have that the values of a and b are:

a = 16\nb = 2

Answer:

a = 16\nb = 2

Note: To write square root on pc we use sqrt

Answer:

Step-by-step explanation:

Type in "sqrt .... "   or   click on the "omega" icon below for a list of built-in math characters, including  "√"