SOLUTION: A car is 4.3m long and 1.72m wide. If a toy model of the car is 2.6cm long, calculate the width of the model.

Algebra ->  Surface-area -> SOLUTION: A car is 4.3m long and 1.72m wide. If a toy model of the car is 2.6cm long, calculate the width of the model.      Log On


   

Question 1187113: A car is 4.3m long and 1.72m wide. If a toy model of the car is 2.6cm long, calculate the width of the model.
Found 2 solutions by MathLover1, ikleyn:
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
m to cm ratio is 1to 100=>1cm=0.01m
toy model of the car is 2.6%2F100+=0.26m long
4.3m%2F1.72m=0.26m%2Fw
4.3mw=0.26m%2A1.72m
w=%280.26m%2A1.72m%29%2F4.3m
w=%280.4472m%29%2F4.3
w=0.104m+
convert to cm
w=10.4cm


or this way: 1m=100cm, convert all to cm
430cm%2F172cm=26cm%2Fw
5%2F2=26cm%2Fw
5w=2%2A26cm
5w=52cm
w=52cm%2F5
w=10.4cm


Answer by ikleyn(52786) About Me  (Show Source):
You can put this solution on YOUR website!
.
A car is 4.3m long and 1.72m wide. If a toy model of the car is 2.6cm long, calculate the width of the model.
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            The setup and the solution by @MathLover1,  including her answer,  are totally wrong.

            I came to bring a correct solution. 


Use the proportion


    %284.3m%29%2F%281.72m%29 = %282.6cm%29%2Fx.


From the proportion, find


    x = %281.72%2A2.6%29%2F4.3 = 1.04.


ANSWER.  The width of the model is 1.04 cm.

Solved.

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For your safety, ignore the post by @MathLover1.