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Alexxx [7]
2 years ago
11

With this one I need help with "" please

Mathematics
1 answer:
butalik [34]2 years ago
8 0
Let, the number in 5th test = x

It would be: 96 + 93 + 97 + 92 + x / 5 ≥ 95
378+x / 5 ≥ 95

Multiply both sides by 5, 
378 + x ≥ 475

Subtract 378 from both sides, 
x ≥ 475 - 378
x ≥ 97

In short, He must need to score 97

Hope this helps!



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Answer:

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Step-by-step explanation:

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think of it as making the recipe twice. twice is double. :)

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gavmur [86]

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3 0
3 years ago
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I need help can I have how to do it and some work so I can do it.
tiny-mole [99]

Answer:

(-1,-2) OR x = -1 and y = -2

Step-by-step explanation:

y = 3x + 1

y = -x -3

so you would first multiply everything on y = -x -3 by 3 and get 3y = -3x -9

so then you would add 3y = -3x -9 to y = 3x + 1 (<u> to eliminate the x</u> )which would be 4y = -8 then divide by 4 and get  <u><em>y = -2</em></u>

then you plug in y = -2 into any one of the equations but to make it easier i am going to plug it into y = -x -3 so now it would be -2 = -x - 3 then, add 2 to both sides which would be 0 = -x -1 then add 1 to both side 1 = -x then multiply both sides by -1 and get <u><em>x = -1</em></u>

<u><em>SO your answer would be </em></u> (-1,-2) OR x = -1 and y = -2 ( both of them are correct but it depends on what the teacher taught you)

5 0
2 years ago
Add.
valkas [14]
Correct answer is B because I have to right formula and you
7 0
2 years ago
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