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
pav-90 [236]
2 years ago
10

What percent of 84 is 21

Mathematics
2 answers:
dlinn [17]2 years ago
6 0
25% because 21 is a quarter of 84. And 21 times 4= 84, so 21 is 25% of 84.
alexdok [17]2 years ago
5 0
We set up a proportion: 21/84= ?/100

Cross multiply: 84*?= 21*100
⇒ ?= 21*100/84= 25

25% of 84 is 21.
You might be interested in
Consider the example of finding the probability of selecting a black card or a 6 from a deck of 52 cards.
Marina86 [1]

Answer:

The probability of selecting a black card or a 6 = 7/13

Step-by-step explanation:

In this question we have given two events. When two events can not occur at the same time,it is known as mutually exclusive event.

According to the question we need to find out the probability of black card or 6. So we can write it as:

P(black card or 6):

The probability of selecting a black card = 26/52

The probability of selecting a 6 = 4/52

And the probability of selecting both = 2/52.

So we will apply the formula of compound probability:

P(black card or 6)=P(black card)+P(6)-P(black card and 6)

Now substitute the values:

P(black card or 6)= 26/52+4/52-2/52

P(black card or 6)=26+4-2/52

P(black card or 6)=30-2/52

P(black card or 6)=28/52

P(black card or 6)=7/13.

Hence the probability of selecting a black card or a 6 = 7/13 ....

7 0
3 years ago
What is the answer and how do you find it?
Grace [21]
<span>According to the Exterior Angle Theorem, the</span> measure of an exterior angle of a triangle is equal to the sum of the measures of the two non-adjacent interior angles of the triangle.
11x+2=5x+10 + 58
6x=66
x=11
3 0
2 years ago
What is the difference between 5 and -5
liraira [26]

Answer:

10

Step-by-step explanation:

5 - 5 = 0 You would want to subtract five from zero giving you -5.

6 0
2 years ago
Mr. Moore planted a tree in his backyard. His tree grew 3 1/3 feet over five years. if his tree grew at the same rate each year,
alina1380 [7]

Answer:

D. 2/3 per year.

Step-by-step explanation:

3 1

3

÷ 5

=  

10

3

÷ 5

=  

10

3

×  

1

5

=  

10 × 1

3 × 5

=  

10

15

=  

10 ÷ 5

15 ÷ 5

=  

2

3

4 0
2 years ago
Lin solved the equation 8(x - 3) + 7 = 2x(4 - 17) incorrectly. Identify the TWO errors Lin made while solving.
Arlecino [84]

Answer:

when she subtracts 8x to 26 and dividing

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Other questions:
  • The rule (x,y)→(2x,2y) maps △DEF to △D′E′F′. Which statement correctly describes the relationship between △DEF and △D′E′F′ ?
    15·2 answers
  • A company makes video games. The price of a video game is modeled by the function p(x) = 30x + 2, where x is the number of years
    10·2 answers
  • A tortoise is traveling at 10 feet per minute,at this rate, how many yards will it travel in 1 yard
    13·1 answer
  • Complete the two-column proof found in the attachment
    10·1 answer
  • the hypotenuse of the right angled triangle is 6cm more than twice the shortest side. if the third side is 2 cm less than the hy
    9·1 answer
  • Two factory plants are making tv panels. Plant A produced 2000 fewer panels than Plan B did. Two percent of the panels from Plan
    11·1 answer
  • Anyone know how to solve this step by step?
    14·1 answer
  • Divide the difference between 70 and 20 by 25.
    10·2 answers
  • The scale of the map is 1/4 inch =12 miles what is the distance in between Harrisburg and Leighton if 4.5 inches.
    7·2 answers
  • Which is the same as 15.39 + 100?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!