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aliina [53]
2 years ago
14

*PLEASE ANSWER IT'S CONFUSING!!!* *ILL GIVE BRAINLIEST*!!!!!

Mathematics
1 answer:
Lerok [7]2 years ago
8 0

Answer:

c

Step-by-step explanation:

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10(1+3x)=-20 and -5x-8(1+7x)=-8 <br> With steps
SOVA2 [1]

(1)

10(1+3x)=-20

Cross multiply.

10+30x=-20

Isolate x on one side. So you would subtract 10 on each side. and one side will cross each other out. leaving you with,

30x=-20-10

Subtract 10 from -20.

30x=-30

Divide each side by 30 to get x.

30x÷30=-30÷30

Therefore,

x=-1

(2)

-5x-8(1+7x)=-8

Cross multiply -8(1+7x)

-5x-8-56x=-8

Isolate all x's on one side. So you would add 8 on each side. and one side will cross each other out. leaving you with,

-5x-56x=-8+8

Add 8 to -8.

-5x-56x=0

Subtract -56x from -5x

-61x=0

Divide each side by -61

-61x÷-61=0÷-61

Therefore,

x=0

6 0
3 years ago
Write <br> 25<br> 2<br> as a mixed number. <br> Give your answer in its simplest form.
masha68 [24]

Answer:

12 and 1/2<u>
</u>

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Julia and Cody are working together on solving math problems. For every one problem that Julia
slega [8]

Answer:

Cody has solved (12 × 12) = 144 problems.

Step-by-step explanation:

For every one problem that Julia completes, Cody completes twelve.

If Julia Completes x problems and Cody completes y problems, then we can write y = 12x ........ (1)

Now, given that the number of problems solved by Cody is one hundred twenty more than two times the number of problems solved by Julia.

Hence, 2x + 120 = y ......... (2)

Now, from equations (1) and (2) we get,  

2x + 120 = 12x

⇒ 10x = 120

⇒ x = 12

Therefore, Cody has solved (12 × 12) = 144 problems. (Answer)

4 0
3 years ago
Find the length of the segment indicated. Round your answer to the nearest tenth if necessary.
alukav5142 [94]

Answer:

x=5

Step-by-step explanation:

im so bad at explaining things but i hope this helped

3 0
3 years ago
Subtracting with zeroes
nexus9112 [7]
The number would stay the same because, for example, 6 - 0 can't be 0 so it would be 6.
6 0
3 years ago
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