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To get from her home to a friend's house, Georgia must go past a school, then a post office:

Signs tell Georgia that the distance she walks from home to the school is 7/8 mile, and the distance from the school to the post office is 5/6 mile.

The whole trip takes Georgia 42 minutes. If Georgia can walk a mile in 18 minutes, then how many miles is the distance from the post office to her friend's house?

 Mar 11, 2021
 #1
avatar+31281 
+1

From Home to the post office = 7/8 + 5/6 mile = 41/24 mile

 

(41/ 24 + x ) mile   *    18 min/mile   =   42 minutes         x = distance from PO to Freind's crib

      x =    42 /18   - 41/24   =   .625   miles       ( 5/8 mile)

 Mar 11, 2021
edited by ElectricPavlov  Mar 11, 2021
 #2
avatar+118069 
+2

Note that she covers  1/18  mi  in one minute

 

So

 

Rate * time  = distance

 

(1/18) mi/mi *  42 min  =  7/3 mi    = total distance

 

(7/3)  - (7/8) - (5/6)    =   5/8 mi   =  .625 mi = distance we need

 

 

cool cool cool 

 Mar 11, 2021

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