Concept explainers
a.
To calculate the distance between Isadorra’s home and school
a.
Answer to Problem 3.1STP
I’s home is 1200 yards away from her school.
Explanation of Solution
Given:
Graph of relation between time and distance
Concept Used: Graph reading
Calculation:
The starting point on the graph, that is, where value of time is zero, shows the total distance Issadorra has to travel.
Hence, concluding from the graph, the distance between I’s home and school is,
1200 yards.
Conclusion:
The distance between I’s school and home is 1200 yards.
b.
To calculate the distance Issadora is at, from home, after travelling for 3mins.
b.
Answer to Problem 3.1STP
She is 1000 yards away from her home, after travelling for 3mins.
Explanation of Solution
Given:
Graph of relation between time and distance
Concept Used:
Graph reading
Calculation:
Checking the value of distance when time is 3mins,on the graph.
Hence, concluding from the graph, the distance between I’s home and school is,
1000 yards, when she has been travelling for 3 min.
Conclusion:She is 1000 yards away from her home, after travelling for 3mins.
c.
To calculate the time when Iis 200 yards from her home
c.
Answer to Problem 3.1STP
After 10 mins of walking, I was 200 yards from home.
Explanation of Solution
Given:
Graph of relation between time and distance
Concept Used: Graph reading
Calculation:
Checking the value of time when distance is 200yards, on the graph.
Hence, concluding from the graph, the time I’s was travelling for when distance was 200 yards, from her home is, 10 mins.
Conclusion:
After 10 mins of walking, I was 200 yards from home.
d.
To calculate time it took I to reach home.
d.
Answer to Problem 3.1STP
She is 1000 yards away from her home, after travelling for 3mins.
Explanation of Solution
Given:
Graph of relation between time and distance
Concept Used:
Graph reading
Calculation:
The ending point on the graph, that is, where value of distance is zero, shows the total time it took Issadorra to reach home.
Hence, concluding from the graph, the total time it took I’s to reach home from school is,
12mins.
Conclusion: She is 1000 yards away from her home, after travelling for 3mins.
Chapter ISG Solutions
Algebra 1, Homework Practice Workbook (MERRILL ALGEBRA 1)
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