Answer:
Step-by-step explanation:
Hello,
we assume that a is different from 0 otherwise there is not much we can say on c and then we can write
a(c+b)=d
<=> ac+ab=d
<=> ac = d - ab
<=> 
Hope this helps
Answer:
B.0.25
Step-by-step explanation:
Answer:170
Step-by-step explanation:
34 miles times 5 days is 170 miles
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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