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Concept explainers
a.
To draw: a graph showing the possible amounts of time she can spend walking and jogging.
a.
![Check Mark](/static/check-mark.png)
Answer to Problem 64SR
Where x is the time walking and y is the time jogging (in hours).
Solutions are all points that lie on the blue line and lies in the shaded region.
Explanation of Solution
Given information: A exercises every day by walking and jogging at least 3 miles.
A walks at a rate of 4 miles per hour and jogs at a rate of 8 miles per hour. Suppose she has exactly one half-hour to exercise today.
Formula Used:
Distance = Speed * Time.
Calculation:
Total time =x + y =0.5.
Where x is the time walking and y is the time jogging (in hours).
Solutions are all points that lie on the blue line and lies in the shaded region.
b.
To list: three possible solutions.
b.
![Check Mark](/static/check-mark.png)
Answer to Problem 64SR
Three possible solutions:
(0.1, 0.4); 6 min walking and 24 minutes jogging.
(0.15, 0.35); 9 min walking and 21 minutes jogging.
(0.2, 0.3); 12 min walking and 18 minute jogging.
Explanation of Solution
Given information: A exercises every day by walking and jogging at least 3 miles.
A walks at a rate of 4 miles per hour and jogs at a rate of 8 miles per hour. Suppose she has exactly one half-hour to exercise today.
Calculation:
Three possible solutions:
(0.1, 0.4); 6 min walking and 24 minutes jogging.
(0.15, 0.35); 9 min walking and 21 minutes jogging.
(0.2, 0.3); 12 min walking and 18 minute jogging.
Chapter 10 Solutions
Algebra 1
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