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
Juli2301 [7.4K]
3 years ago
15

The sum of two numbers is 21.

Mathematics
2 answers:
mafiozo [28]3 years ago
7 0

Answer:

Pretend that x and y represents the 2 numbers that we need to find.

According to the information, we know that:

x + y = 21

6x = y

Replace y in the first equation with 6x (because they are equal to each other according to the second equation):

x + y = 21

x + 6x = 21

7x = 21

x = 21/7 = 3

Now have two ways to find y, both will give us the same result:

3 + y = 21 ⇔ y = 21 - 3 = 18

6 · 3 = y ⇔ y = 18

So the numbers that we need to find are 3 and 18.

klio [65]3 years ago
7 0

Answer:

3 and 18.

Step-by-step explanation:

If one number is x then the other is 6x.

So, x + 6x = 21

7x = 21

x = 3.

The other number is 21 - 3 = 18.

You might be interested in
My dividend is 8 times as large as my divisor. i am a even number less than 15 what quotient am i?
Pavel [41]
I think it is 8 because it is an even number

5 0
4 years ago
Read 2 more answers
Which two terms in (3+14) +27 could you add to get a multiple of ten? ​
Aleksandr-060686 [28]

Answer:

3 and 27

Step-by-step explanation:

<u>Step 1:  Determine which two terms we can use</u>

We have the following numbers to choose from:  3, 14, 27

Adding two numbers to get a multiple of ten means that the number that we come up with needs to be divisible by ten.  For example:  20, 30, 50, 100 are all multiples of ten.

In this example the only one that would add up to create a multiple of ten is 27 and 3 which would give us 30 which is a multiple of 10.

Answer: 3 and 27

8 0
2 years ago
What is the mean, median and mode of the following data set? Please label each response.
irinina [24]

Answer:

Mean: 21

Median: 23

Mode: 27

Step-by-step explanation:

order from least to greatest:

1, 15, 18, 22, 23, 25, 27, 27, 31

mean: add all the numbers and divide by 9 bc thats how many numbers there are so that means the answer is

21

Median: to find the median you order the numbers from least to greatest and find out the middle number so in that case the median is 23

Mode: to find the mode you look to see what number is repeated multiple times, so the mode is 27

8 0
4 years ago
What is 340 decreased by 35%?
masha68 [24]
221. 119 is 35% of 340. 340-119=221
hope it helped
7 0
3 years ago
Read 2 more answers
0.5÷7/10<br>please help me with this my teacher is driving me crazy​
Illusion [34]

Answer:  0.714286

turn 7/10 into .7 and divide normally

7 0
3 years ago
Other questions:
  • A painter is painting a wall with an area of 150 ft2. He decides to paint half of the wall and then take a break. After his brea
    9·2 answers
  • 36x + 4) = 18 (Given)
    7·1 answer
  • Find the exact value by using a half-angle identity. cosine of pi divided by twelve
    15·1 answer
  • Graph x+5y=4 solve for x and y.
    12·1 answer
  • You plan on purchasing a car in the next year. The car that you are interested in lists for $23,000 after taxes, license, and do
    7·1 answer
  • What is the value of m in the following equation? (If your answer is an integer, type it like this example: 25. If your answer i
    7·2 answers
  • Let D = E = {−2, −1, 0, 1, 2} Write negations for each of the following statements and determine which is true, the given statem
    10·1 answer
  • If 50 is 20% of a value what is that value
    9·2 answers
  • The sum of all but one interior angle of a heptagon is 776°. The final angle must have a measure of degrees.
    6·2 answers
  • HELP PLEASE
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!