1. 15x
2. 21
3. 4
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Answer:
A) 2 miles, 5 miles, 8 miles
Step-by-step explanation:
Let's get some details cleared.
We're interested in finding how many miles he walked at the end of each hour in a period of 3 hours.
We know what is, so we can use that as our starting point.
Your answer is A.
Given:
The equation is

To find:
The coefficient and reciprocal.
Solution:
We have,

Here,
is multiplied with x.
So, the coefficient of x is
.
To find the reciprocal, we need to interchange numerator and denominator of a fraction.
So, the reciprocal of
is 
Therefore, the reciprocal is 3.
Answer:
787/1000
Step-by-step explanation: