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Scilla [17]
3 years ago
15

If a vertical pole 30 ft tall casts a shadow 8ft long, how long would the shadow of 40-ft pole be at the same time and place

Mathematics
1 answer:
TEA [102]3 years ago
5 0
Since it as at the same time and place.

Let x be the length of the shadow of the 40-ft pole.

The ratio from 30 and 8 would have to be the same as 40 and x.

30:8  =  40:x

30/8 = 40/x    Cross multiply

30x = 40*8

x = 40*8 / 30 = 32/3 = 10.67

Length of shadow for 40ft  is 10.67 ft.
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