Answer:
19
Step-by-step explanation:
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A plane flew 193 km in 12 minutes at constant speed. what was the speed of the airplane in km per hour? "965 km'
Answer:
73>78
Step-by-step explanation: 20 +50 + 9= 79 -6 = 73
Supplementary angles
x+20+5x+10=180
6x+30=180
6x=150
x=25