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OpenStudy (anonymous):
The height-to-arm-length ratio of a tyrannosaurus is 20 feet to 3 feet. A human is 8 1/2 heads tall. Use this ratio to determine the arm length of a human if the human were built like a tyrannosaurus.
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OpenStudy (dumbcow):
is that 8.5 feet tall
OpenStudy (anonymous):
do you know the answer?
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
can you solve it?
OpenStudy (anonymous):
can someone sove this?
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OpenStudy (dumbcow):
ok set up the ratio like this two fractions set equal to each other T_height/T_armLength = H_height/H_armLength 20/3 = 8.5/x cross multiply 20x = 3*8.5 x=25.5/20
OpenStudy (anonymous):
is that star multiply?
OpenStudy (dumbcow):
yes
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