A truck heads north at a constant speed of

80 km/h. A car leaves 20 minutes later

heading north along the same road and

travelling at a constant speed of 90 km/h.

Writr an equation that could be used

to determine how much time in hours (t) the car

travels until it catches up to the truck?

Question

Maggie Chambers

Mathematics

1 January, 03:30

A truck heads north at a constant speed of

80 km/h. A car leaves 20 minutes later

heading north along the same road and

travelling at a constant speed of 90 km/h.

Writr an equation that could be used

to determine how much time in hours (t) the car

travels until it catches up to the truck?

+5

Answers (1)

Know the Answer?

Harriet · Answer 1

Equation of the travel of the truck: y = 80. x (x in hours)

equation of the travel of the car : y = 90 (x - 1/3)

when they meet: 80x = 90x - 30 = > 10x = 30 = > x = 3h

They'mm meet after 3 hours

A truck heads north at a constant speed of80 km/h. A car leaves 20 minutes laterheading north along the same road andtravelling at a constant speed of 90 km/h.Writr an equation that could be usedto determine how much time in hours (t) the cartravels until it catches up to the truck?

A truck heads north at a constant speed of

80 km/h. A car leaves 20 minutes later

heading north along the same road and

travelling at a constant speed of 90 km/h.

Writr an equation that could be used

to determine how much time in hours (t) the car

travels until it catches up to the truck?