lb31224
20.01.2022 •
Mathematics
a train is moving at an average speed of (5x-8) miles per hour (A) write an expression for the distance traveled by train in 3 hours(B)how far does the train travel in 3 hours if x=15
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Ответ:
A) 5(3) - 8 = 15 - 8, = 7 miles traveled in 3 hours
B) 5(15) - 8 = 75 - 8 = 67 miles traveled in 3 hours
Ответ:
a.3(5x-8)
b.201miles
Step-by-step explanation:
A.because per hour (5x-8)miles so 3hours travel distance 3(5x-8)
B.3(5x-8
=3x (5x15-8) 15x5=75
=3x(75-8) 75-8=67
=3x67 67x3=201
=201miles
Hope this helps!
Ответ:
the answer is $2015