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3 years ago

-1/2x-1/4(10x-9)=-(-7/4x+2)-x

Mathematics

2 answers:

Tems11 [23]3 years ago

8 0

Answer:

x= 17/15

Step-by-step explanation:

−1/2 x- 1/4 (10x−9)=−( -7/4 x+2)−x

Blizzard [7]3 years ago

3 0

The answer would be x= 17/15

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Answer:

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Step-by-step explanation:

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3 years ago

Find the distance between two points C(-6,5) and D(-3,1)

gladu [14]

The formula of a distance between two points:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

We have:

$C(-6,\ 5)\to x_1=-6,\ y_1=5\\D(-3,\ 1)\to x_2=-3,\ y_2=1$

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3 years ago

Suppose y varies inversely with x, and y = 18 when x = 12. What is the value of x when y = 24? NO LINKS OR ANSWERING YOU DON'T K

Luba_88 [7]

Answer:

B. 9

Step-by-step explanation:

We are given that y varies inversely with x. Recall that inverse variation has the form:

$\displaystyle y=\frac{k}{x}$

Where k is the constant of variation.

We are given that y = 18 when x = 12. Hence:

$\displaystyle (18)=\frac{k}{(12)}$

Solve for k. Multiply both sides by 12:

$k=12(18)=216$

Thus, our equation is:

$\displaystyle y=\frac{216}{x}$

We want to find x when y = 24. Substitute:

$\displaystyle \frac{24}{1}=\frac{216}{x}$

Cross-multiply:

$24x=216$

Divide both sides by 24. Hence:

$x=9$

Our answer is B.

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3 years ago

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