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Nitella [24]
3 years ago
11

The value of y varies directly with x, and when x=8, y=2. Write an equation to represent the direct variation.

Mathematics
2 answers:
sdas [7]3 years ago
7 0

Answer: y=1/4x

Step-by-step explanation:

Direct variation looks like this y=kx divide 8 and 2 that will give you 4. Since there is no numerator add a one at the top.

Citrus2011 [14]3 years ago
6 0

Answer:

y=1/4x

Step-by-step explanation:

a direct variation equation is y=kx. if y=1/4x, then when x=8, y=2.

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The table below shows the relationship between the number of calories burned and the minutes of exercise.
sergejj [24]

Answer:

Option B

Step-by-step explanation:

Since, number of calories 'C' burned is proportional to the number of minutes (m) given to the exercise,

C ∝ m

C = km

Where k is the proportionality constant.

From the table attached,

For C = 250 calories and m = 30 minutes,

250 = 30k

k = \frac{250}{30}

  = \frac{25}{3}

Therefore, equation representing this situation will be,

C = \frac{25}{3}m

Option B will be the correct option.

5 0
3 years ago
URGENT 20 points describe the graph of the function g(x) =(-0.8 X) is related to the graph of the parent function. *
MAXImum [283]

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Step-by-step explanation:simple

8 0
2 years ago
Draw a diagram that represents 4/5
o-na [289]
Here I drew one to show an example
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4 0
3 years ago
What is the area of the trapezoid shown ?
Irina18 [472]

Answer:

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5 0
3 years ago
Find the area of the shaded regions. Give your answer as a completely simplified exact value in terms of π (no approximations).
Alla [95]

Area of shaded region is 18π square unit.

<u>Step-by-step explanation:</u>

Given :- A circle with center O and radius 9 cm

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7 0
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