0436500
11.06.2020 •
Mathematics
4. The time one automobile travels 240 km is one hour less than the time it takes a second car, which is 12 km/h
slower than the first. What is the speed of the slower car?
Distance (km)
Speed (km/h)
Time (h)
240
First automobile
240
x
Second car
240
x-12
x
240
x-12
240
Use the equation
-+1=
240
5,x>12 to determine the speed of the first automobile. (4 marks)
x-12
X
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