MATHEMATICS MIDDLE SCHOOL

For which equation is 7 a solution​
For which equation is 7 a solution​ - 1

Answers

Answer 1
Answer:

3x + 1 = 27

3(7) + 1 = 27

21 + 1 = 27

22 ≠ 27

FALSE

3(x + 1) = 24

3(7 + 1) = 24

3(8) = 24

24 = 24

TRUE

2x + 3(x - 4) = 21

2(7) + 3(7 - 4) = 21

14 + 3(3) = 21

14 + 9 = 21

23 ≠ 21

FALSE

x^2 - 8 = 42

7^2 - 8 = 42

49 - 8 = 42

41 ≠ 42

FALSE

Hope This Helped! Good Luck!

Related Questions

I dont know the answer. Can someone help me ?
On the blueprint of a house, 28 millimeters represents 6 meters. The actual length of the living room is 9 meters. What is its length on the blueprint?
If 2b= -3, what is the value of 1 – 4b?
Find two consecutive numbers whose squares differ by 17
The graph of g(x) shown below resembles the graph of f(x)=x^4-x^2 but it has been changed somewhat which of the following could be the equation of g(x)

Fill in the boxes plz. Thanks

Answers

Answer:

z = (5)/(8) \n

Step-by-step explanation:

9z + (7z-4)=6 \n 9z + 7z - 4 = 6 \n 16z = 6 + 4 \n 16z = 10 \n z = (10)/(16) \n \n z = (5)/(8)

James deposited $575 into a bank account that earned 5.5% simple interest each year.If no money was deposited into or withdrawn from the account, how much money was in the account after ​ ​ 2 1/2​ ​ years?

Round your answer to the nearest cent.

Answers

Hi there!
So first we should find what 1% of 575 is. To do that de divide it by 1 and get 5.75. Since he gets 5.5 simple interest per year, we multiply 5.75 by 5.5. We get 31.625. This asks how much after 2 1/2 years, so lets multiply 31.625 by 2.5 and get 79.0625. Then add that amount to 575 and end out with 654.0625. But this question asks us to round to the nearest cent, and after rounding we have 654.06. So, after 2 1/2. years he has $654.06! Hope this helps.

Answer:

654.06

Step-by-step explanation: I took the quiz.

You bought a car for $20,000. You have owned it for one year, and it is now worth $16,000. What is the percent decrease in your car's value?

Answers

I think it'd be 20%.. I could be wrong. 

You make 72 cookies for a bake sale.this is 20%of the cookies at the bake sale.how many cookies are at the bake sale?

Answers

number of cookies at the bake sale = 72 * 100 / 20 = 360 cookies

Can 7 go into 42 and 91

Answers

7 times 6 is 42
91 divided by 7 is 13
Yes. Because 7 time 6 is 42, and 7 time 13 is 91

4.3 as a percentage

Answers

Since 1 is 100% 
      4.3 is 430 %

Hope it helped :)
430% because you have to move the decimal place to the right two times
Other Questions
How do you break apart 3 x 5
What property is 2+0 = 2
there are 5 pounds of apples in one bag make a table to show how many pounds of apples are in 6 bags. how do you know your answer is reasonable
What decimal is halfway between 18 hundredths and 3 tenths