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suter [353]
3 years ago
12

6th grade math help me. :D.....

Mathematics
2 answers:
gregori [183]3 years ago
5 0

Answer:

(1) 4x + 28 (2) 18x- 27

Step-by-step explanation:

the first question 4(x + 7) can be simplified by multiplying the number outside the parenthesis (4) by both of the values inside:

4x + 28 or the last answer choice

in the second question you can use the same method:

9 (2x) = 18x

9 ( -3) = -27

therefore the correct answer choice is 18x - 27

hope this helps :)

strojnjashka [21]3 years ago
4 0
Question 1:
4x+28

question 2:
18x-27
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The sum of two numbers is 9 . one number is nine less than twice the other. find the two numbers.
dimulka [17.4K]
Hello!

To solve this problem, we will use a system of equations. We will have one number be x and the other y. We will use substitutions to solve for each variable.

x+y=9
x=2y-9

To solve for the two numbers, we need to solve the top equation. The second equation shows that x=2y-9. In the first equation, we can replace 2y-9 for x and solve.

2y-9+y=9
3y-9=9
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We now know the value of y. Now we need to find x. We can plug in 6 for y in the second equation to find x.

x=2·6-9
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Just to check, we will plug these two numbers into the first equation.


3+6=9
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I hope this helps!
7 0
3 years ago
Anyone know this ???
e-lub [12.9K]

Answer:

? = 13

Step-by-step explanation:

Using Pythagoras' identity in the right triangle

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? = \sqrt{169} = 13

4 0
3 years ago
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Questions in a nutshell:
Lesechka [4]

Answer:

1.048576e+46

Step-by-step explanation:

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the answer is 1.048576e+46

8 0
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Pepsi [2]

Answer:

(1,-44), (2,-48),(3,-52).......

Step-by-step explanation:

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(1,-44)

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2 years ago
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sesenic [268]

Answer:

Yes

Step-by-step explanation:

9/21 SIMPLIFIED= 3/7

6/14 SIMPLIFIED= 3/7

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2 years ago
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