Acar drives for 1 hour 55 minutes with a constant speed of 36 km/h and then for another 1 hour 50 minutes with a constant speed of 72 km/h. what distance did it go?

Convert hours to minutes

1 hour 55 mins = 60 + 55 = 115 mins
1 hour 50 mins = 60 + 50 = 110 mins




Speed = 36/h

1 hour = 36 km


Rewrite 1 hour as 60 mins

60 mins = 36 km


Find 1 min

1 min = 36 ÷ 60
1 min = 0.6 km


Find 115 mins

1 min = 0.6 km
115 min = 0.6 x 115 
115 min = 69km




Speed = 72km/h

1 hour = 72 km


Write 1 hour as 60 mins

60 mins = 72 km


Find 1 min

1 min = 72 ÷ 60 
1 min = 1.2 km


Find 110 min

1 min = 1.2 km
110 min = 1.2 x 110 
110 min = 132 km




Total Distance traveled:

69km + 132km = 201km


201 km

A. -10 is the value of x