Sagot :
In the given problem, apply your knowledge in algebraic expression and basic mathematics especially in solving word problem about mathematical equation.
Word Problem 1
A. What is his average speed over the course of the run?
Time = 7:30 - 6:00
Time = 1 hour and 30 mins
Time = 1.5 hr
s = d/t
s = 7.5/1.5
s = 5
Answer: 5 km/hr
B. How many kilometers did he run after the first half hour?
If 1 hr = 5 km
30 mins = 1/2(5)
30 mins = 2.5
Answer: 2.5 km
C. If he kept running at the same rate and covered a distance of 8 kilometers, how long did he run?
s = d/t
5 = 8/t
t = 8/5
t = 1.6 hours
Answer: 1 hour and 36 minutes
Word Problem 2
For 6 days
Height = 10 + 0.4d
Height = 10 + 0.4(6)
Height = 10 + 2.4
Height = 12.4
Answer: 12.4 cm
For 8.5 days
Height = 10 + 0.4d
Height = 10 + 0.4(8.5)
Height = 10 + 3.4
Height = 13.4
Answer: 13.4 cm
Word Problem 3
For 2 hours
Fee = 40 + 30h
Fee = 40 + 30(2)
Fee = 40 + 60
Fee = 100
Answer: Php. 100
For 1.5 hours
Fee = 40 + 30h
Fee = 40 + 30(1.5)
Fee = 40 + 45
Fee = 85
Answer: Php. 85
For 30 mins
30 mins = 0.5 hr
Fee = 40 + 30h
Fee = 40 + 30(0.5)
Fee = 45 + 15
Fee = 60
Answer: Php. 60
Learn more about solving word problem here at https://brainly.ph/question/12018271
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