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-2
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avatar+392 

Piravena must make a trip from $A$ to $B$, then from $B$ to $C$, then from $C$ to $A$. Each of these three parts of the trip is made entirely by bus or entirely by airplane. The cities form a right-angled triangle as shown, with $C$ a distance of 3000 km from $A$ and with $B$ a distance of 3250 km from $A$. To take a bus, it costs Piravena $\$0.15$ per kilometer. To take an airplane, it costs her a $\$100$ booking fee, plus $\$0.10$ per kilometer.Determine the distance she travels for her complete trip.

 Mar 24, 2020
edited by Paresh  Mar 24, 2020
edited by Paresh  Mar 24, 2020

Best Answer 

 #3
avatar+23710 
+1

find the distance   BC using pythagorean theorem   

 

3250^2  =  3000^2  + BC^2         BC = 1250 km    

 

SO her total distance travelled  =   3250  +  1250  +  3000 km = ......

 Mar 24, 2020
edited by ElectricPavlov  Mar 24, 2020
 #1
avatar+1970 
0

Hint:

 

Use the Pythagorean Theorem, which is a^2+b^2=c^2.

 Mar 24, 2020
 #2
avatar+392 
0

ik that but im confused on the calculations

Paresh  Mar 24, 2020
 #3
avatar+23710 
+1
Best Answer

find the distance   BC using pythagorean theorem   

 

3250^2  =  3000^2  + BC^2         BC = 1250 km    

 

SO her total distance travelled  =   3250  +  1250  +  3000 km = ......

ElectricPavlov Mar 24, 2020
edited by ElectricPavlov  Mar 24, 2020

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