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2 years ago

the variables x and y vary inversely with a constant variation of 7. Use the variation formula, k=xy, to find why when x=9

Mathematics

1 answer:

dolphi86 [110]2 years ago

7 0

1.Make y the subject

k = xy

k/x = xy/x

y = k/x

2.Substitute

y = k/x

y = 7/9

y = 0.777......

y = 0.8 (Answer)

To confirm

k = xy

k = 9 × 0.8

k = 7.2

k = 7 (constant)

Hope it helps☺

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To make a sports drink for the football team, Jaylen filled \dfrac9{10}

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The total gallons of sports drink Jaylen made using 9/10 of a large cooler with water and 6 cups of sports drink concentrate is 3.75 gallons

<h3>Total gallons</h3>

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To make a sports drink for the football team, Jaylen filled 9/10 of a large cooler with water. Then, he filled the remaining space with 6 cups of sports drink concentrate. How many gallons of sports drink did Jaylen make?

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Assume that a policyholder is four times more likely to file exactly two claims as to file exactly three claims. Assume also tha

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