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myrzilka [38]
3 years ago
10

5y + 10x = 0 y = - 3x Plz help me the photo is the directions for the problem

Mathematics
1 answer:
enyata [817]3 years ago
3 0
When substituting, you want to take the y value from one equation and plug it into the y variable in the other equation to find the x value. When you find the c value, you plug the number into one of the equations to get your y value.

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A book costs $12.50 plus sales tax. After tax it costs $13.25. What is the sales tax rate?
WINSTONCH [101]

Answer:

The rate of sales tax is 6%.

Step-by-step explanation:

First you must subtract 12.50 from 13.25

This brings you to .75

Then, divide .75/12.50 to get 0.06 which is equivalent to 6 percent.

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your doctor prescribes you to take 400 milligrams of medicine every 8 hours how many ounces of medicine do you take in a day
alekssr [168]
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otez555 [7]
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4 0
3 years ago
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Tema [17]

Answer:

1

Step-by-step explanation:

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4 0
3 years ago
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Point B lies between points A and C on Line segment A C . Let x represent the length of segment AB in inches. The length of line
olchik [2.2K]

Step-by-step explanation:

If Point B lies between points A and C on line segment AC, then the formula is true AB+BC = AC

Given

AB = x inches'

AC = 20 inches

BC = 3x

Substituting the given parameters into the formula AB+BC = AC

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Since x = 5 inches, hence the segment AB id 5 inches.

Given BC = 3x

BC = 3(5)

BC = 15 inches

This means that the space between points A and B is labeled 5 inches while the space between points B and C is labeled 15 inches.

8 0
3 years ago
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