yuko drove 819 miles in 13 hours. at the same rate,how many miles would she drive at 11 hours

解

y u k o d ro v e 819 mi l es in 13 h o u rs . a t t h e s am e r a t e, h o w man y mi l es w o u l d s h e d r i v e a t 11 h o u rs

trip 2 distance : 693

解答ステップ

Given Time:

trip 1 : 13

trip 2 : 11

Given Distance:

trip 1 : 819

Represent the speed in terms of

x :

trip 1 : x

trip 1 Speed x Time 13 Distance 819

Write an equation for trip 1Distance = Speed

\cdot

Time

819 = x \cdot 13

x

を解く

819 = x \cdot 13 : x = 63

speed : 63

Represent the distance in terms of

y :

trip 2 : y

trip 2 Speed 63 Time 11 Distance y

Write an equation for trip 2Distance = Speed

\cdot

Time

y = 63 \cdot 11

y

を解く

y = 63 \cdot 11 : y = 693

trip 2 distance : 693