Answer:
x=6/5 or 1.2
Step-by-step explanation:
2.5x=x+3
2.5x-x= 3
2.5x= 3
divide both by 2.5
x= 6/5 or 1.2
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See the photo mate.As we know time=speed/time than as he travelled 4km in 1 hour probably his speed is 4km/h than time required to travell 7km
Time=7/4=1.75hours
96 yards = 288 feet
speed is 288/40 - 7.2 feet/s