menu
Qamnty
Login
Register
My account
Edit my Profile
Private messages
My favorites
25% of what number is 21?
Ask a Question
Questions
Unanswered
Tags
Ask a Question
25% of what number is 21?
asked
Jan 13, 2019
90.2k
views
1
vote
25% of what number is 21?
Mathematics
middle-school
MartinJ
asked
by
MartinJ
8.1k
points
answer
comment
share this
share
0 Comments
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
2
Answers
5
votes
Let the unknown number be x.
25% of x is 21
25% * x = 21
0.25 * x = 21
0.25x = 21
0.25x/0.25 = 21/0.25
x = 84
Answer: The number is 84.
Ben Hamner
answered
Jan 16, 2019
by
Ben Hamner
8.0k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
3
votes
Hey there! :D
25% represents a quarter of a number.
If 21 is a quarter of a number, multiply it by
4.
21*4= 84
21 is 25% of
84.
I hope this helps!
~kaikers
Enthusiast Martin
answered
Jan 20, 2019
by
Enthusiast Martin
8.2k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
← Prev Question
Next Question →
No related questions found
Ask a Question
Welcome to Qamnty — a place to ask, share, and grow together. Join our community and get real answers from real people.
Categories
All categories
Mathematics
(3.7m)
History
(955k)
English
(903k)
Biology
(716k)
Chemistry
(440k)
Physics
(405k)
Social Studies
(564k)
Advanced Placement
(27.5k)
SAT
(19.1k)
Geography
(146k)
Health
(283k)
Arts
(107k)
Business
(468k)
Computers & Tech
(195k)
French
(33.9k)
German
(4.9k)
Spanish
(174k)
Medicine
(125k)
Law
(53.4k)
Engineering
(74.2k)
Other Questions
What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
Twitter
WhatsApp
Facebook
Reddit
LinkedIn
Email
Link Copied!
Copy
Search Qamnty