kristasearles
kristasearles kristasearles
  • 22-02-2018
  • Mathematics
contestada

(15) ? Is this correct or am I missing something, thanks :)

15 Is this correct or am I missing something thanks class=

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zrh2sfo
zrh2sfo zrh2sfo
  • 22-02-2018
You are correct!

Step 1:Write what you know
Madeline's Height: 6 ftMadeline's Shadow: 108 in
Friend's Height: X (we use X as a variable because his height is unknown)Friend's Shadow: 108 in - 1.5 ft                              108 in - 18 in                                 90 in
Step 2:Set up proportions
6          x----- = -----108      90 
Step 3:Cross Multiply & Solve
108x = 540x = 5 ft tall

Answer Link

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