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受欢迎的 Word Problems >

Marissa drives for 3hours at 60km per hour. Maricel drives 260kilometers in 4hours. How far would Marissa travel if she drove for 3hours at the same speed as Maricel

解答

M a r i ss a d r i v es f or 3 h o u rs a t 60 km p er h o u r . M a r i ce l d r i v es 260 ki l o m e t ers in 4 h o u rs . Ho w f a r w o u l d M a r i ss a t r a v e l i f s h e d ro v e f or 3 h o u rs a t t h e s am e s p ee d a s M a r i ce l

解答

trip 2 distance : 195

求解步骤

Given Time:

trip 1 : 4

trip 2 : 3

Given Distance:

trip 1 : 260

Represent the speed in terms of

x :

trip 1 : x

trip 1 Speed x Time 4 Distance 260

Write an equation for trip 1Distance = Speed

\cdot

Time

260 = x \cdot 4

求解

x, 260 = x \cdot 4 : x = 65

speed : 65

Represent the distance in terms of

y :

trip 2 : y

trip 2 Speed 65 Time 3 Distance y

Write an equation for trip 2Distance = Speed

\cdot

Time

y = 65 \cdot 3

求解

y, y = 65 \cdot 3 : y = 195

trip 2 distance : 195

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