3 years ago

Please help. I can't find answer.

Mathematics

1 answer:

AveGali [126]3 years ago

4 0

Answer:

-1,5

Step-by-step explanation:

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Ben scores 56 out of 79 marks in a maths test.

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Answer: 70.8%

56 divided by 79= 0.708
0.708x100=70.8

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3 years ago

What is the answer to "4= -0.8n"

maxonik [38]

The answer is negative 5. Hoped this helps. Please mark me as brainliest if I get it right.

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3 years ago

Elimination_4x_2y=14 _10x+7y=_24

Gnesinka [82]

Answer:

The answer is $x=-\frac{50}{8}$ and $y=\frac{11}{2}.$

Step-by-step explanation:

Given:

-4x-2y=14

-10x+7y=-24

Now, to solve it by elimination:

$-4x-2y=14$ ......(1)

$-10x+7y=-24$ ......(2)

So, we multiply the equation (1) by 7 we get:

$-28x-14y=98$

And, we multiply the equation (2) by 2 we get:

$-20x+14y=-48$

Now, adding both the new equations:

$-28x-14y+(-20x+14y)=98+(-48)$

$-28x-14y-20x+14y=98-48$

$-28x-20x-14y+14y=50$

$-8x=50$

Dividing both the sides by -8 we get:

$x=-\frac{50}{8}$

Now, putting the value of $x$ in equation (1):

$-4x-2y=14$

$-4(-\frac{50}{8})-2y=14$

$\frac{200}{8} -2y=14$

$25-2y=14$

Subtracting both sides by 25 we get:

$-2y=-11$

Dividing both sides by -2 we get:

$y=\frac{11}{2}$

Therefore, the answer is $x=-\frac{50}{8}$ and $y=\frac{11}{2}.$

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Answer:

The answer would be 7 I hope this helps! : )

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Joan’s uncle has promised her $20,000 when she graduates college 4 years from now. What is the equivalent amount stated in today

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Answer:

2:10

Step-by-step explanation:

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