29 = 4 + .75b
subtract 4
25 = .75b
divide .75
b = 33.3333333
b = 33 braids
Answer is B: 150
write two equations
r+s=190
4r+3s=720
solve by substitution
the get r=150 s=40
Without speeding up it would take 5 1/3 seconds.. not sure if it speeds up in the question?
Answer:
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Step-by-step explanation:
11/9/2001
Answer:
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Step-by-step explanation:
hope it hepls