Mathematics: Bob drove 120 miles on his vacation. he drove an average of 1.2 times faster on the second 60 miles of his trip than he did on the first 60 miles of his trip. which expression represents the time he spent driving? let x = his speed on the first half of the trip.

Bob drove 120 miles on his vacation. he drove an

Ответ:

kim643

31.12.2021

V = x ( his speed on the first half of the trip )
1.2 v = 1.2 x ( his speed on the second half of the trip )
t = d / v
t = 60 / x + 60 / 1.2 x = 60/ x + 50 / x = 110 / x
A ) 110 / x

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Ответ:

naeaamm2528

26.06.2020

Mathematics

42 - ( 42÷2 + 10 ) = 42 - ( 21 + 10 ) = 42 - 31 = 11 cars are silver ;
11 / 42 is the fraction of the cars are silver.

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Bob drove 120 miles on his vacation. he drove an average of 1.2 times faster on the second 60 miles of his trip than he did on the first 60 miles of his trip. which expression represents the time he spent driving? let x = his speed on the first half of the trip.

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