3 years ago

The value of y varies directly with x. If x = 7, then y = 15.

Mathematics

2 answers:

Alona [7]3 years ago

8 0

Answer:

Step-by-step explanation:

mark me brainliest plz

Delvig [45]3 years ago

4 0

Answer:

Step-by-step explanation:

No.

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Simplify the expression. (m^2n^-5)/m^7n^-17

guapka [62]

$\dfrac{m^2n^{-5}}{m^7n^{-17}}=m^{2-7}n^{-5-(-17)}=m^{-5}n^{-5+17}=m^{-5}n^{12}\\\\=\dfrac{n^{12}}{m^5}\\\\Used:\\\\\dfrac{a^n}{a^m}=a^{n-m}\\\\a^{-n}=\dfrac{1}{a^n}$

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3 years ago

Name the property illustrated by the following. (a) x + (-x) = 0; (b) x + (-y) = -y + x

Mama L [17]

Answer:

Step-by-step explanation:

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3 years ago

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lord [1]

Solve for Y: y < 9

I don't know if you want me to solve for Y or not

7 0

3 years ago

What is the value of x ?

Lostsunrise [7]

Vertical angles are congruent (equal), and the angles below are vertical angles.

x + 40 = 3x

40 = 3x - x

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3 0

3 years ago

The scale of a map is 1:1,000,000. What are the real distances between two points if the distance between them on this map is: b

Dennis_Churaev [7]

Answer:

The real distance is $600,000\ cm$ or $6\ km$

Step-by-step explanation:

we know that

The scale of the map is $1:1,000,000$

that means

1 cm in the map-------> represent 1,000,000 cm in the actual (real distance)

by proportion

$\frac{1}{1,000,000}=\frac{0.6}{x}\\ \\x=0.6*1,000,000\\ \\x=600,000\ cm$

Remember that

$1\ km=100,000\ cm$

$600,000\ cm=6\ km$

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3 years ago