The speed of a roller coaster depends on the height it drops from. Which expression represents the speed of a roller coaster if
1 answer:
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Answer:
y = x
Step-by-step explanation:
Given that the quantities vary directly then the equation relating them is
y = kx ← k is the constant of variation
To find k use either of the 2 given points
Using (12, 9), that is x = 12 when y = 9, then
k = =
=
y = x ← equation of variation
Answer:
Step-by-step explanation:
<h3> The complete exercise is: "In order to solve this exercise, you need to follow the steps shown below:
<em>Step 1:</em> Divide the numerator 9 of the fraction by the denominator 25. Then:
<em>Step 2: </em>To calculate the percent of Polly's co-workers that prefer tea over coffee, you must multiply the quotient obtained before (this is ) by 100.
Therefore, you get the following result:
Then, you can conclude that 36% of Polly's co-workers prefer tea over coffee.