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
lina2011 [118]
3 years ago
15

21 is 75%, percent of what number?

Mathematics
2 answers:
ELEN [110]3 years ago
8 0

Answer:

28

Step-by-step explanation:

x • 3/4 = 21

Multiply both sides by 4/3 to cancel out 3/4.

x = 21 • 4/3

x = 64/3

x = 28

Plug it back into the equation to make sure it works.

28 • 3/4 = 21

64/4 = 21✓

Murljashka [212]3 years ago
6 0

Answer:

28 would be your answer

You might be interested in
Help with#14 please!!!
Alisiya [41]
<h3>▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪</h3><h3 /><h3><u>Question</u> : 14</h3>

let's solve for f :

  • \dfrac{1}{f}  =  \dfrac{1}{a}  +  \dfrac{1}{b}

  • \dfrac{1}{f}  =  \dfrac{b + a}{ab}

Taking reciprocal of both sides :

  • f =  \dfrac{ab}{a + b}
7 0
3 years ago
Can someone help with me
umka21 [38]

Answer:

yes your answer is 45 degree

8 0
2 years ago
Read 2 more answers
6x+1=6x-8. I need to show my work also
Alenkasestr [34]

Answer:

No solution.

Step-by-step explanation:

Lets try to solve it.

6x + 1 = 6x - 8      Bring like terms to the same side:  

6x - 6x =  -8 - 1

0 = -9  which is absurd so there is no solution to this equation.

7 0
3 years ago
Read 2 more answers
Janet’s car insurance payment decreases by $20 each year. Which expressions represent the total change in her payment,in dollars
Liono4ka [1.6K]

Answer:

Option C is the correct answer.

C.  5•(-20)

Step-by-step explanation:

We are told that the insurance payment for the car follows a certain pattern that can be represented through an expression. The payment is decreasing by $20 every year. As we don't know the total payment amount per period, so we cannot calculate how much is paid per period/year for insurance but we can calculate the rate at which this payment is decreasing.

Change in payment = t * (-20)

The above expressions can be used to calculate the amount of change in payment i payment is decreasing by a constant $20 every year, after t years.

So, if we want to calculate the change in payment after say 5 years, we can replace t with 5 in the equation and calculate the change,

Change in payment = 5 * (-20)

Change in payment = - $100

4 0
3 years ago
Death Valley in California is approximately 250 feet below sea level. Which of the following best describes the location of Deat
forsale [732]
+250 I am happy to help you
8 0
3 years ago
Read 2 more answers
Other questions:
  • 13 teams of cheerleaders. what is the probability that your team performs first and your friend's team performs second
    10·1 answer
  • Which of the following employees has the latest gross pay
    6·1 answer
  • Simplify the expression a+7(1+10a)
    9·1 answer
  • If n is an even integer between 1 and 1989, what is the probability that n^2 is divisible by 8
    14·1 answer
  • The length and breadth of a rectangular field are 50 m and 40 m respectively. Find the distance travelled by a boy in walking al
    11·1 answer
  • Is -1 1/4 a rational number?<br> yes<br> no<br> Submit
    13·2 answers
  • Please help :((((((((((. Will give brainliest!
    8·1 answer
  • -b+ 3x = C + 5b<br><br> Solve for x in terms of b and c<br><br><br> I NEED HELP
    11·1 answer
  • What is the slope of the line?
    9·1 answer
  • My assignment say what’s the proportional relationship between C and F
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!