1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Serggg [28]
3 years ago
13

21 is 75% of what amount

Mathematics
2 answers:
podryga [215]3 years ago
6 0
21 is 75% of 28. You already know that to make 100, you need 4 25's. 75 is three 25's. You take 21 and divide it by three to get seven. Then you take your past knowledge and multiply 7 by 4 and get 28.
zysi [14]3 years ago
3 0
In the given question it is required to find an unknown amount from all the details given in the question. It is given that 21 is the 75% of the unknown number.
Let us consider the amount = x
Then we can write the equation as
75x/100 = 21
75x = 21 * 100
75x = 2100
x = 2100/75
  = 28
So the correct amount is 28. <span>. I hope to have made the procedure clear for finding the solutions of such problems.</span>



You might be interested in
Solve.<br>7^x+1^y=39^x<br>Thanks!
Bumek [7]

x=0.270327

I think is that

5 0
2 years ago
In a batch of 890 calculators, 12 were found to be defective. What is the probability that a calculator chosen at random will be
scoray [572]

Answer:

<em>1.3%</em>

When entered into a calculator, 12/890 (the chance of a given calculator being defective) = 0.01348...

As a percent this is 100*0.01348% = 1.348%, and to the nearest tenth, 1.3%

3 0
3 years ago
Read 2 more answers
PLS HELP COME QUICK!!!!!!!
Andrews [41]
Minus 36 from each one you can do it on a calculator:)
8 0
3 years ago
Clara is stacking cups; she put 45 plastic cups in the first stack, 38 plastic cups in the second stack, 31 plastic cups in the
Levart [38]

Answer:

Subtracting 7

Step-by-step explanation:

<u><em>Given:</em></u>

<em>Clara is stacking cups; she put 45 plastic cups in the first stack, 38 plastic cups in the second stack, 31 plastic cups in the third stack, and 24 plastic cups in the fourth stack. </em>

<u><em>To Find:</em></u>

<em>What kind of sequence is this?</em>

<u><em>Solve:</em></u>

<em>Let's make a table:</em>

<em />

<em>[1 stack]  45 </em>

<em>[2 stack] 38</em>

<em>[3 stack] 31</em>

<em>[4 stack] 24</em>

<em />

<em>Now all we have to do is subtract to see what each is:</em>

<em>45 - 38 = 7</em>

<em>38 - 31 = 7</em>

<em>31 - 24 = 7</em>

<em>Thus,</em>

<em>[1 stack]  45 ⇒ 7</em>

<em>[2 stack] 38 ⇒ 7 </em>

<em>[3 stack] 31 ⇒ 7 </em>

<em>[4 stack] 24 ⇒ 7 </em>

<em>Hence, each stack is going down by 7.</em>

<em />

<u><em>Kavinsky</em></u>

<em />

7 0
2 years ago
the hall family garden is 3/4 of an acre. if they divide their garden into 1/8 acre sections, how many sections will they have?
Korvikt [17]
We know that
<span>The hall family garden is ------------> 3/4 of an acre
</span><span>if they divide their garden into 1/8 acre sections
so
(3/4)/(1/8)-------> (3/4)*(8)--------> 8*3/4------> 24/4-----> 6 sections

the answer is
6 sections</span>
6 0
3 years ago
Other questions:
  • The volume of a sphere is 5000 pi meters cubed. What is the surface area
    6·1 answer
  • What is 36 divided by 489 <br> And 17 divided by 8433
    15·2 answers
  • If p &lt; q and q &lt; r, what is the relationship between the values p and r?<br>​
    8·1 answer
  • Factor the following polynomial.<br> 2x^3– 10x^2 – 12x<br> Enter the GCF of<br> the polynomial.
    9·2 answers
  • I need some help...............
    7·1 answer
  • joes family has compleated 60% of a road trip. if they have traveld 30 miles, how far is the full road trip?
    9·1 answer
  • Find the center and the radius
    9·1 answer
  • Find KL round to nearest tenth
    15·1 answer
  • Brian has saved $15 a week for x weeks he spends $50.00. Write an expression that shows how much money he has left
    6·2 answers
  • How Did Dregg Do On His Antarctica Test? Answers
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!