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3 years ago

25% of what number is 21

Mathematics

1 answer:

chubhunter [2.5K]3 years ago

8 0

If we call the number "x" then:
x*25%=21
x*25/100=21
x=21*4
x=84

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Please Help.....' Divide. Write your answer to the simplest form. 5/6 divided by 7/10

belka [17]

Answer:

5/6 ÷ 7/10 = 1 4/21

Step-by-step explanation:

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3 years ago

What is the sum of 3 fifteens and 17 fifteens

vampirchik [111]

3x15=45 and 17x15=255 so 45+255=300

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3 years ago

Read 2 more answers

Ginny’s favorite cookie recipe requires 1 1/2 cups of sugar to make 24 cookies. How much sugar does Ginny need to make 36 of the

Delicious77 [7]

Ginny needs $2\frac{1}{4}$ cups of sugar to make 36 cookies.

Step-by-step explanation:

Given,

Sugar cups required for 24 cookies = $1\frac{1}{2}=\frac{3}{2}\ cups$

Ratio of sugar cups to cookies = $\frac{3}{2}:24$

Let,

x be the number of cups needed for 36 cookies.

Ratio of sugar cups to cookies = $x:36\\$

Using proportion;

Ratio of sugar cups to cookies :: Ratio of sugar cups to cookies

$\frac{3}{2}:24::x:36$

Product of mean = Product of extreme

$24*x=\frac{3}{2}*36\\24x=54$

Dividing both sides by 24

$\frac{24x}{24}=\frac{54}{24}\\x=\frac{9}{4}\\x=2\frac{1}{4}$

Ginny needs $2\frac{1}{4}$ cups of sugar to make 36 cookies.

Keywords: fraction, proportion

Learn more about fractions at:

#LearnwithBrainly

7 0

3 years ago

Let f(x)=-2-7 and g(x)= -4x+6. Find (f*g)(-5)

Masja [62]

If (-5) = x then the anwser should be
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2 years ago

Pls answer this question

Pavlova-9 [17]

Answer:

Question 37:

B) 21

Step-by-step explanation:

How I found the radius:

radius= 132/ 2 x π

r=132 / 6.2831853071796

r=21.0084525

Divide 132 by 6.2831853071796

π = 3.1415926535898

Note: Hope this Helps!

-kiniwih426

5 0

2 years ago