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Answer each part. If necessary, round your answers to the nearest hundredth.(a) Jose bought 21 pounds of rice for $11.How many dollars did he pay per pound of rice?dollarsperpound(b) It takes 51 pounds of seed to completely plant an 8-acre field.How many pounds of seed are needed per acre?poundsperacre

Question

Answer each part. If necessary, round your answers to the nearest hundredth.(a) Jose bought 21 pounds of rice for $11.How many dollars did he pay per pound of rice?dollarsperpound(b) It takes 51 pounds of seed to completely plant an 8-acre field.How many pounds of seed are needed per acre?poundsperacre

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Solution

(a) To find out how many dollars Jose paid per pound of rice, you need to divide the total cost of the rice by the total pounds of rice.

So, 11÷21pounds=11 ÷ 21 pounds = 0.52 per pound.

(b) To find out how many pounds of seed are needed per acre, you need to divide the total pounds of seed by the total acres of the field.

So, 51 pounds ÷ 8 acres = 6.375 pounds per acre. If rounding to the nearest hundredth, it would be 6.38 pounds per acre.

This problem has been solved

Similar Questions

(a)Michael bought 24 pounds of flour for $10.How many dollars did he pay per pound of flour?(b)It takes 28 pounds of seed to completely plant a 3-acre field.How many pounds of seed are needed per acre?If necessary, round your answers to the nearest hundredth.EXPLANATIONThe word "per" is a keyword that tells us to divide.We take the quantity before the "per" and divide by the quantity after.(a)How many dollars did he pay per pound of flour?To get dollars per pound, we take the number of dollars and divide by the number of pounds.dollars per pound = number of dollarsnumber of poundsMichael bought 24 pounds of flour for $10.So the number of dollars is 10 and the number of pounds of flour is 24.dollars per pound =1024=÷1024=0.4166…≈ 0.42

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Answer each part. If necessary, round your answers to the nearest hundredth.(a) Aldo bought 7 pounds of rice for $4.How many pounds of rice did he get per dollar?poundsperdollar(b) Maya runs 4 miles in 29 minutes.How many miles does she run per minute?milesperminute

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