Answer:
9.6 km
Step-by-step explanation:
The last third of the trip is 3200 meters. The first two thirds can be calculated by multiplying that value with two:
The total distance is the sum of the two thirds and the last third of the trip:
To convert the distance to kilometres, the value should be divided by 1000:
6
3x+6+5x+10=64
3x+5x+6+10=64
8x+16=64
8x=64-16
8x=48
divide both sides by 8
x=6
Flip the triangle
Flip the triangle upside down over the red line. Hope it helps!!!
138 x 12 = 1,656