3 years ago

Tell whether x and y show direct variation. Explain your reasoning. y−x=0

Mathematics

1 answer:

Jlenok [28]3 years ago

7 0

Answer:

yes

Step-by-step explanation:

Direct variation is represented as

y = kx, where k is a constant.

We can rewrite y - x = 0 as

y = x (add x to both sides)

This can be looked at as

y = (1)x , so this is a direct variation relationship where k = 1

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Alexxandr [17]

Answer:

$\frac{17}{6}\ cups$

Step-by-step explanation:

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Answer:

Step-by-step explanation:

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3 years ago

The sum of the digits of a two-digit number is 7. If the digits are reverses, the new number is 9 more than the original number.

____ [38]

Step-by-step explanation

Let the ones's digit =x.

So, sum of the digits =7

Tens's digit =7−x

Original no. =10(7−x)+x=70−10x+x=70−9x

Reversed no. =10x+7−x=9x+7

2(orig no) = reversed no. −2

2(70−9x)=9x+7−2

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x=5

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No. =25

5 0

3 years ago

Find the area of a circle with a circumference of 81.68cm

Whitepunk [10]

Answer:

A= 20959.52 cm

Step-by-step explanation:

Formula: A= π x r^2

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A= 20959.52

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castortr0y [4]

The common endpoint is Q. The angle is: angle RQP, angle PQR, or just angle Q

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