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
7nadin3 [17]
2 years ago
9

What is the value of x+y? Eight grade math

Mathematics
1 answer:
atroni [7]2 years ago
6 0

Hello! The value of x+y is 12

Make sure to read an explanation so you can understand the solution better.

Any questions about the answer and explanation can be asked through comments.

Step-by-step explanation:

We can simply solve the system of equations by substituting x = 3y in the first equation

\large{2x + 2y = 24} \\  \large{2(3y) + 2y = 24} \\  \large{6y + 2y = 24} \\  \large{8y = 24} \\  \large{y = 3}

Therefore, the value of y is 3. Then we substitute the value of y in x = 3y.

\large{x = 3y} \\  \large{x = 3(3)} \\  \large{x = 9}

Therefore, the value of x is 9.

Since you want to find x+y, simply add 9 and 3 as we get 12.

Therefore x+y = 12.

You might be interested in
Solve by using Elimination.
Alexxx [7]
<h3>Answer:</h3>

It is (3, -1)

<em>Hope this helped :)</em>

6 0
3 years ago
If 50 grams of a radioactive substance decomposed to 42 grams in 2 years, then, to the nearest gram, the amount left after 5 yea
Inga [223]

Answer:

30 grams

Step-by-step explanation:

50-42=8

8÷2=4

4=1 year

5×4=20

50-20=30

Hope u can understant

3 0
3 years ago
Write an expression for "8 times z."
garri49 [273]

Answer: 8z 8(z)

Explanation: well 8 times z is simply 8(z)I don’t really think there is another way

5 0
3 years ago
Ill give 20 points if you help me out!!
Rasek [7]

Answer:

4 + y = 36

y = 36 - 4

y = 32

3 0
2 years ago
Read 2 more answers
Mark has $18.00. What is the greatest number of days he can rent a bicycle? 2d=18 where d represents the number of days of the r
aksik [14]

Answer:

9

Step-by-step explanation:

9x2 is 18, so he can rent a bike for nine days if the rent is $2

6 0
3 years ago
Other questions:
  • Ivan is saving money to buy a computer with. He started with $225 in his savings account and the first week he added $75, the se
    11·2 answers
  • Haley had 56 dollars she spent 5/8 of her money on a new shirt how much money did she have left after buying the shirt
    8·1 answer
  • Solve 2+1^6y=3x+4 for y.
    13·1 answer
  • Lucas cut a board that is 3 1/5 ft. long and 3 1/3 ft. wide. What is the area of the board? Express your answer in simplest form
    9·2 answers
  • I NEED HELP FAST PLEASE
    14·1 answer
  • The radius of a circle is 3 cm. find the area in terms of pi​
    13·2 answers
  • Without multiplying, is 4 × 0.36 less<br> than or greater than 4? Explain its for my little sis oof
    13·2 answers
  • The original price, p, of a single scoop of ice cream has increased by 7%. The new price can be represented as 1.07p. Which expr
    8·1 answer
  • Between What Two Integers Is The Value of The Square Root Of 21?
    12·2 answers
  • PLEASE HELP AND HURRY over due and due at 12
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!