2. Suppose that y varies inversely with x. Write an equation for the inverse variation.
1 answer:
Answer:
Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent an inverse variation if it can be expressed in the form or
we have
y = 4 when x = 7
Find the value of the constant of proportionality k
substitute
therefore
The equation for the inverse variation is equal to
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Answer:
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Step-by-step explanation:
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Answer:
The number of calories in 5.5 cups are <u>495</u>.
Step-by-step explanation:
Given:
You buy milk that contains 180 calories per 2 cups.
Now, to find the number of calories in 5.5 cups.
Let the number of calories in 5.5 cups be
As, in 2 cups there are 180 calories.
2 cups is equivalent to 180 calories.
Thus, the ratio would be
So, in 5.5 cups there are calories.
5.5 cups is equivalent to calories.
Thus, the ratio would be
Now, we set proportion to get the number of calories in 5.5 cups:
<em>By cross multiplying we get:</em>
<em>Dividing both sides by 2 we get:</em>
.
Therefore, the number of calories in 5.5 cups are 495.