The answer is 5.9059 .... heard of a calculator?
5. a.) 8.73/450x100=1.94
b.) 8.73/450≈0.02
c.) 450/8.73x25≈1289
7 a.) 622/12≈52km per hour
b.) 622/0.5=1244 km per hour ( that's .......impossible...)
Those are your answers.
3/8 * 2 = 6/16, One side is 16ft. The total perimeter is 48 ft.
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16 ft. -> / \
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That's my best triangle. :)
The answer to your question would be 4 miles an hour
10:20 and 20:30 form a ratio