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
Verdich [7]
3 years ago
12

The average of three numbers is 25. The average of two of those numbers is 21. What is the value of the third number of the orig

nial three? a 32 b 33 c 34 d 35
Mathematics
1 answer:
Elza [17]3 years ago
8 0

Answer:

b) 33

Step-by-step explanation:

You reverse the process of finding the second average, 21, which will help you find the original average, 25. First you multiply the second average, 21, to retrace your steps. We do this because the last thing we do when we find the average is divide. when you multiply 21 you get 42. Now you have the value of the first two numbers. Then you experiment with the numbers. To save time I'll get to the point. When you add 33 + 42 you get 75. Then you divide by 3 to get 25. You divide by three because the instructions say there was 3 numbers to start with. Hope this helps.

You might be interested in
It costs $68 for 16 square feet flooring.how much does it cost for 12 square feet of flooring
ozzi
We know that it costs $68 for 16 square feet of flooring. To find out how much it costs for 12, we first have to find out how much it costs for 1 square foot.
To find that, we would do $68 divided by 16, which is 4.25.
That means 1 square foot costs $4.25.
Then, we would multiply $4.25 by 12 to find how much 12 square feet costs.
$4.25 times 12 is 51.

So, it would cost $51 to have 12 square feet of flooring.
8 0
3 years ago
Read 2 more answers
Find the perimeter of a regular nonagon with sides measuring 14.
Andrews [41]

Answer:

126

Step-by-step explanation:

A Nonagon has 9 sides. To answer this, the polygon has to be regular.

The Perimeter is 9*14 = 126

4 0
3 years ago
Read 2 more answers
If two lines are perpendicular, which statement must be true? A) The product of their slopes is 1. B) Their slopes are opposites
castortr0y [4]
If two lines are perpendicular, the statement that must be true is : D. The product of their slopes is -1

Lets say that a line has a slope of 2, the line which perpendicular to that line would have a slope of -1/2

Which means, the product would be 2(-1/2) = -1

hope this helps
4 0
3 years ago
You have a batting average of .250. This means that the probability of your getting a hit is 25%. If you have 520 attempts this
Ksju [112]

Answer:

130 expected hits

Step-by-step explanation:

520 attempts times 0.25 is 130

6 0
3 years ago
Read 2 more answers
How many solutions does the nonlinear system of equations graphed below
Fudgin [204]
The answer I think I don’t for sure i think it’s d
8 0
3 years ago
Other questions:
  • jack lease a car for $159\month for 39 months. the amount due when he signed the lease was 2399. how much did jack pay during th
    10·1 answer
  • Square Root
    12·2 answers
  • The number of patients treated at Dr. Artin’s dentist office each day was recorded for nine days. These are the data: 6, 6, 6, 5
    13·1 answer
  • At midnight, the temperature was 31.2°F. In the morning, the temperature was −6.7°F. Which statement describes the temperatures?
    15·1 answer
  • A yogurt costs thirty five pence. How many yogurts can be bought for three pounds?
    8·1 answer
  • Please help me quick​
    7·1 answer
  • Miguel is working at the county fair. On​ Friday, he works at the concession stand. On​ Saturday, he works at the balloon dart b
    10·1 answer
  • Can someone help me with this
    11·2 answers
  • Pls help 10 points pls!
    7·1 answer
  • En una bolsa cerrada hay 45 euros en monedas de 2, 5, 10, 20 y 50 centimos. Si metiéramos en la bolsa una moneda de 5 céntimos,
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!