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liq [111]
3 years ago
15

If equation is x + y = 3 and x - y = 7 then the value of x will be?

Mathematics
2 answers:
Svet_ta [14]3 years ago
5 0
Yea the other person is correct the x= 5 and the y= -2

Have a nice day
KiRa [710]3 years ago
4 0

Answer:

x = 5

Step-by-step explanation:

Add the equations

x + y = 3

x - y = 7

––––––––

2x = 10

Divide both sides by2

x = 5

Note: for the equations in the question,

none of the given answers are correct.

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Harrizon [31]

Answer:

26 m

Step-by-step explanation:

Find what length is needed for fencing by finding the perimeter of the land.

Use the perimeter formula, P = 2l + 2w

Plug in the length and width:

P = 2l + 2w

P = 2(8) + 2(5)

P = 16 + 10

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So, the length of wire needed is 26 m

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3 years ago
Helpppp plzzzz what is the measure of /_x
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Step-by-step explanation:

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What must a clerk's sales be to give him $83.50 commission if the rate of commission is 40%?
FromTheMoon [43]

Divide commission amount by percentage:

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6 0
3 years ago
An electronics store has two options for liquidating televisions that have not sold.
Oksanka [162]
Answser: first option <span>350(0.95)^x + 30x - 350

Explanation:

You can figure out the </span><span>function that shows the difference in price between option 1 and option 2 if you make a table simulating the behavior for a few months:

month                 price as per option 1          price as per option 2

start                     350                                     350

1                          350 - 5% (350) =                350 - 30
                            = 350 (0,95)

2                          350 (0,95)×(0,95) =
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3                           350 (0,95)³                        350 - 30(3)

So now you can figure out the price with each option after x months:

                             350 (0.95)ˣ                        350 - 30x

And the difference is 350 (0.95)ˣ - [350 - 30x]

Which, expanding the square brackets, is 350 (0.95)ˣ + 30x - 350 ↔ the first option.
</span>
7 0
3 years ago
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Answer: 178 minutes

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4 0
3 years ago
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