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
Marrrta [24]
3 years ago
12

21 is 15% of what number?

Mathematics
1 answer:
Gnoma [55]3 years ago
7 0
You do it like this:
15/100 = 21/x and cross multiply like this:
15x = 2100 ((Divide by 15 on both sides)
x = 140 (This is your answer)
I hope this helps you! Have a great night!

You might be interested in
I need help from you guys I have to teach in class on friday and I'm in 7th grade what can I teach help you guys anything like p
anygoal [31]
Have you learned about the Pythagorean theorem? a² + b² = c² . . . you should teach them about this.
7 0
3 years ago
Read 2 more answers
PQ has a midpoint of M. the coordinates of M are (-4, 7) and the coordinates of P are (2, 13). What are the coordinates of Q?
Natali5045456 [20]

Using the midpoint formula, the coordinates of Q are: <em>A. (-10, 1)</em>

<h3>What is the Midpoint Formula?</h3>
  • Midpoint formula is given as, M(x, y) = (\frac{x_2 + x_1}{2} , \frac{y_2 + y_1}{2})

Thus, given that:

  • M is the midpoint of PQ.
  • M (-4, 7)
  • P (2, 13).

Therefore:

M(-4, 7) = (\frac{2 + x_1}{2} , \frac{13 + y_1}{2})

Solve for x-coordinate of P:

-4 = 1/2(2 + x1)

2(-4) = 2 + x1

-8 = 2 + x1

-8 - 2 = x1

x1 = -10

Solve for y-coordinate of P:

7 = 1/2(13 + y1)

14 = 13 + y1

y1 = 1

Therefore, using the midpoint formula, the coordinates of Q are: <em>A. (-10, 1)</em>

<em />

Learn more about the midpoint formula on:

brainly.com/question/88621

3 0
2 years ago
NEED HELP ASAP!!!
melamori03 [73]
◆ Lines n Angles ◆

Hey !!

Check the attachment.
Hope it helps you :)

4 0
3 years ago
Find BC please help!
Ulleksa [173]

Answer:

BC=23

Step-by-step explanation:

Use sine rule:

x/sinX=y/sinY

BC/sinA=AB/sinC

BC/sin61=9/sin20

BC=26.3142396015*sin61

BC=23.0149525338

3 0
2 years ago
[GIVING BRAINLYEST ANSWER]
neonofarm [45]

Answer:

D. c/6 - x

Step-by-step explanation:

Rearranging with subject '6y':

6y = c - 6x

Dividing the above equation by 6 to get subject 'y':

y = c/6 - x

<em>Feel free to mark this as brainliest and hope this helps! :)</em>

6 0
1 year ago
Read 2 more answers
Other questions:
  • A rectangle is placed around a semicircle as shown below. the length of the rectangle is 18yd . find the area of the shaded regi
    10·1 answer
  • Can someone give me the answers to this or how to find the answers to it?
    11·1 answer
  • 9. Darcy is buying apples and oranges for a large fruit basket to give away as a door prize at a charity event. Apples cost $0.2
    13·1 answer
  • A set of stairs is being built as shown.
    10·2 answers
  • The roots of the equation 3x²-2x-4=0 are J and K. Evaluate J² + K².
    14·1 answer
  • Is x + 10 a factor of the function f(x) = x3 − 75x + 250? Explain.
    11·1 answer
  • Selena's favorite chocolate chip cookie recipe calls for 111 teaspoon of salt for every {2 \dfrac{1}{4}}2
    8·1 answer
  • Can someone help me with this?
    7·2 answers
  • Ernesto saves $5.25 every week about how many weeks will take Ernesto to save $315
    11·2 answers
  • Which figure could be the result of dilating this rectangle with a scale factor between 0 and 1?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!