Vehicles drive across Bridge A at a steady rate of 20 cars per hour. Twice as many vehicles drive across Bridge B in twice as mu ch time. Jermain says the unit rate for Bridge B would be twice as great as the unit rate for Bridge A. Is Jermain correct? Explain.
1 answer:
No, because it says bridge B has twice as many so there are 40 cars for 2 hours because it says twice as much time. So the unit rate is 20 cars each hour, so there will be the same unit rate.
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Answer:
g(3a – 6) = a - 4
Step-by-step explanation:
g(x) = 1/3x - 2
g(3a – 6) = 1/3(3a – 6) - 2
= a - 2 - 2
= a - 4
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