if joe drives 50mph for 0.5 hours and then 60mph for 1.5 hours, then how far did he drive

해법

i f j oe d r i v es 50 m p h f or 0.5 h o u rs an d t h e n 60 m p h f or 1.5 h o u rs, t h e n h o w f a r d i d h e d r i v e

trip 1 distance : 25

솔루션 단계

Given Speed:

trip 1 : 50

trip 2 : 60

Given Time:

trip 1 : 0.5

Represent the distance in terms of

x :

trip 1 : x

trip 1 Speed 50 Time 0.5 Distance x

Write an equation for trip 1Distance = Speed

\cdot

Time

x = 50 \cdot 0.5

x

해결 대상

, x = 50 \cdot 0.5 : x = 25

trip 1 distance : 25