90 = k*15
constant of proportionality = 80 / 15 = 6 Answer
Mikayla subtracted 4 from both sides in the beginning when she should've added it to both sides to cancel it out on the right. the correct answer should actually be x=1
Answer:
it's
Step-by-step explanation:
(2f+2)(2f-2)
(2f^2-2^2)
Using the mean concept, it is found that on average, it takes him 11.9 seconds to run a 100 yard dash.
<h3>What is the mean?</h3>
The mean of a data-set is given by the <u>sum of all observations in the data-set divided by the number of observations</u>.
In this problem, the three observations are given by:
12.7 s, 11.2 s, 11.8 s.
Hence the mean is:
M = (12.7 + 11.2 + 11.8)/3 = 11.9.
On average, it takes him 11.9 seconds to run a 100 yard dash.
More can be learned about the mean of a data-set at brainly.com/question/24628525
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Answer:
B. Each value has its own f(x)=y
