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rusak2 [61]
2 years ago
13

Juan reads 3/4 chapters in 4/5 hours. What is the unit rate in chapters per hour?

Mathematics
1 answer:
Burka [1]2 years ago
5 0
3/4:4/5::1:x
(4/5x) = 3/4
Multiply both sides by 5/4
x = 15/16 chapters per hour
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3 years ago
If asphalt pavement costs $0.70 per square foot, find the cost to pave the circular How much does it cost to pave this road?
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Answer:

Cost to pave the road = $4257

Step-by-step explanation:

Area of the pavement = Area of the outer circle - Area of the internal circle

Area of the outer circle = πr²

                                       = π(55)²

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Area of the inner circle = π(33)²

                                       = 1089π square feet

Area of the pavement = 3025π - 1089π

                                     = 1936π

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Cost of pavement = $0.70 per square feet

Therefore, cost of 6082.12 square feet = 6082.12 × 0.70

                                                                 = 4257.49

                                                                 ≈ $4257

Cost to pave the road = $4257                                    

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