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zhannawk [14.2K]
3 years ago
12

What's a proportion that can be used to find out how many points a student needs to reach 78 percent on a 50 point quiz?

Mathematics
1 answer:
Katarina [22]3 years ago
7 0
Hope this helps
vote me brainliest

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Suppose y varies directly with x. Write a direct variation equation that relates x and y. Then find the value of y when x=12
lidiya [134]

Answer:

Step-by-step explanation:

If two variables are directly proportional, it means that an increase in the value of one variable would cause a corresponding increase in the other variable.

Given that y varies directly with x, if we introduce a constant of proportionality, k, the expression becomes

y = kx

If y = 8 when x = 3, then

8 = 3k

k = 3/8

Therefore, the direct variation equation that relates x and y is

y = 3x/8

When x = 12, then

y = 3 × 12/8

y = 4.5

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3 years ago
What is the square root of 100
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I believe that the answer to the equation is 10
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2 years ago
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The answer is D 174 cubes.
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3 years ago
What is the most important thing that must be true about a sample so that you can make a valid inference about population
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4 0
3 years ago
The commission on the sale of a property is 5.5% of the value. What is the commission on the sale of a property that has the sam
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Answer: $1179.75

Step-by-step explanation:

Percentage of commission = 5.5%

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Commission = Percentage commission × Value of property

= 5.5% × $21,450

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The commission is $1179.75

8 0
2 years ago
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