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Homework: 2.5 HW
Gaston paddled for 4 hr upstream and then for 3 hr downstream. His speed upstream was 10 mph slower than his speed downstream. If he traveled a total of 58 mi, how fast did he travel downstream?
The speed Gaston traveled downstream was

Respuesta :

reinhard10158

Step-by-step explanation:

x = downstream speed in mph

4 hours × (x-10) + 3 hours × x = 58 miles

4x - 40 + 3x = 58

7x = 98

x = 14 mph downstream speed

and as extra :

therefore his upstream speed was 14 - 10 = 4 mph

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