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3 years ago

I need help this is due tomorrow and it’s 11:38 so please hurry

Mathematics

1 answer:

Ahat [919]3 years ago

3 0

Answer:

She needs a 96

Her average score now is: 91

Step-by-step explanation:

She needs a total of 460 points. She has already taken 4 of the 5 tests, and earned

85 + 93 + 89 + 97 = 364 points, so she needs

460 - 364 = 96 points

Her average score now is the sum of her scores, divided by the number of tests she has taken, which is...

364/4 = 91

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Answer:

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Step-by-step explanation:

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The equation of direct variation is,

$\begin{gathered} y=kx \\ k=\frac{y}{x} \end{gathered}$

Substitute the values of y and x.

$\begin{gathered} k=\frac{5.4}{4} \\ k=1.35 \end{gathered}$

So, the obtained equation will be y=1.35(x).

Let's check with the values of x.

1) If x=4

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2) If x=2

$\begin{gathered} y=1.35x \\ y=1.35(2) \\ y=2.7 \end{gathered}$

3) If x=-2

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9 months ago

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Answer:

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Step-by-step explanation:

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3 years ago

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