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puteri [66]
3 years ago
13

Y = 2 x + 4 3 x + y = 9

Mathematics
1 answer:
Maurinko [17]3 years ago
6 0
Hope this helped have a good day:)

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I need help solving this
mylen [45]
Simple...

4.) -8-x=x-4x

So, what you want to do is isolate x.

Which means that you must move x to one side, and any other variables to the other side.

-8-x=x-4x

-8-x=-3x

-8-x=-3x
   +x  +x

-8=-2x

\frac{-8}{-2} = \frac{-2x}{2}

4=x

Thus, your answer.

To check your work...plug in x.

-8-x=x-4x

-8-4=4-4(4)

-12=4-(16)

-12=-12

Thus, you know your answer is correct.

7 0
4 years ago
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A private club was reduced by 15 members in 3 weeks. It’s size changed by the same number of members each week. What was the cha
dimulka [17.4K]

Answer:

5 members

Step-by-step explanation:

15/3 = 5

5 members left each week

15 members divided by 3 weeks is 5 members per week

the rate of members who left per week is 15/3 or, simplifying this fraction, 5/1.

4 0
3 years ago
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Please help with number 8!
goldenfox [79]
There are seven (7) friends.

The first friend to board can be any one of the 7.  For each of them ...
The 2nd one to board can be any one of the remaining 6.  For each of them ...
The 3rd one to board can be any one of the remaining 5.  For each of them ...
The 4th one to board can be any one of the remaining 4.  For each of them ...
The 5th one to board can be any one of the remaining 3.  For each of them ...
The 6th one to board can be either of the remaining 2.  For each of them ...
The 7th one to board is the last 1 standing. 

              (7 x 6 x 5 x 4 x 3 x 2 x 1)  =  <span>5,040</span>
8 0
3 years ago
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1. Trinity deposited $6,000 into a savings account 5 years ago. She remembers that the
Rainbow [258]

Answer:

Step-by-step explanation: If interest is compounded yearly, then n = 1; if semi-annually, then n = 2; quarterly, then n = 4; monthly, then n = 12; weekly, then n = 52; daily, then n = 365; and so forth, regardless of the number of years involved. Also, "t" must be expressed in years, because interest rates are expressed that way.

4 0
4 years ago
A crack in the Earth's crust
BlackZzzverrR [31]

Answer:

break line

Step-by-step explanation:

3 0
3 years ago
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