Square root of 40 rounded to the nearest hundredth

Mathematics

1 answer:

coldgirl [10]3 years ago

3 0

6.3 because you round 6.324 to get 6.3

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The length of a rectangle is 3 times the width. the perimeter is 96cm. find the length and width.

olga nikolaevna [1]

Let it's width be x
then, it's length = 3x

perimeter of a rectangle = 2 (l+b)
96 = 2 (3x+x)
96 = 8x
12 = x

so the widthe of that rectangle = 12cm and it's length = 3 (12) = 36cm.

3 0

3 years ago

suppose the number of fiction books is 2/7 times the number of nonfiction books. what would be the ratio of the numbers of nonfi

Elis [28]

Well, the total amount of books is all fiction books and nonfiction books, let's say is "x", total

now, the fiction books are 2:7 or 2/7 to nonfiction

so, if we divide the total "x" by 2+7, or 9, 2 of those quotients go to fiction and 7 of those go to nonfiction

if we divide "x" by 9, a "whole" is 9/9 or (9/9)x or 1x or just "x"

and we know 7 of those 9ths belong to nonfiction, thus

$\bf \begin{array}{clclclll}
\cfrac{2}{9}&+&\cfrac{7}{9}&=&\cfrac{9}{9}\\
\uparrow &&\uparrow &&\uparrow \\
fiction&&nonfiction&&whole
\end{array}\\\\
-----------------------------\\\\
\cfrac{nonfiction}{whole}\implies \cfrac{7}{9}\implies 7:9\impliedby ratio$

7 0

3 years ago

A number is increased 20%.By what percent the new number is decreased so that the number restores the original value?

Molodets [167]

Answer:

You have to give the number by which the 20% is increased in order to cross multiply and divide by a hundred to find the missing % of the decrease. Otherwise, you would simply subtract 20% from 100%, which seems unlikely to be the answer. We need more information.

Step-by-step explanation:

4 0

3 years ago

Dose someone knows this plz help

gavmur [86]

The answer is one hundred sixty five 165

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4 years ago

Read 2 more answers

Greatest to least 17/20 75%.8

barxatty [35]

Answer: