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Brüche Mathematik Middle School Math Brüche

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Name _____________________________

Date ___________________

Brüche
Ganze.

1.   * Dies ist ein vorgefertigtes Arbeitsblatt. Verwenden Sie den Link oben auf der Seite für eine druckbare Seite.

2.   Mr. Hawkins had received two hundred acres as his headright when he came to the Plymouth Colony. He gaveone-eighthof his land to his brother. How many acres did he have left?

Ganze.

3.   Ifein Drittelof all type-Y organisms are bristly andsix-seventhsof all type-Y organisms are wrinkly, what is the maximum number of type-Y organisms that are neither bristly nor wrinkly out of a sample population of350?

4.   At the Megalopolis Zoo they make a special feed to provide to their exotic birds. It is (by mass)1/3super meal,3/8commercial birdseed, andone-eighthcracked corn. The rest is made up of Nutro Feedofill. How much commercial birdseed is required to make139kilograms of the special feed? If the answer is not a whole number, express your answer as a fraction.

Key #2

Ganze.

5.   A new island has formed off the coast of Bay City, which is not unexpected since it is near a subduction zone. The island is currently about2km2. How many years would it take for the island to increase its area by one-half through volcanic activity if it expands at a rate ofthree-eighthsof a square kilometer each year?

6.   In einem ausgetrocketen Flussbett sind1/6der Kiesel kleiner als5mm im Durchmesser und1/3davon ist zwischen5und10mm im Durchmesser. Welcher Bruchteil der Kiesel ist größer als einen Zentimeter im Durchmesser?

Ganze.

7.   Sean is hiking in the national park. He is on a6 3/4-mile hike and he makes four evenly spaced rest stops along the way. At what mile of the hike does he make his last stop?

8.   Kaitlyn is riding her bicycle on the hike and bike trail around Village Lake. She rides25minutes and travels8 1/3miles. She then takes a15minutes rest. After resting (and eating an energy bar) she rides another50minutes and covers15 1/2miles. What was her average speed for the entire trip in miles per hour? (include the time she rested in the answer)

Ganze.

9.   If a solution of MgCl is2/5M, what will its concentration be if it is diluted by18%? Express your answer as a fraction.

10.   A 500-gram package of growth powder made by Z-Globe contains0.1% yeast extract by mass. What fraction of the powder is not yeast extract?

Key #2

Ganze.

11.   Analysis by the marketing department of the local minor league baseball team showed that for every fan who bought a hotdog at the ball park, about half that many people bought a bag of popcorn. So far this year,38,373people have been to the ballpark, and3/8of them bought hotdogs. Based on this information, about how many fans bought popcorn?

12.   After a big storm, Mr. Bloop noticed that a lot of the sand from his volleyball pit had been blown away. He drove his pickup truck down to the local garden supply yard and purchased4truckloads of sand to add to the pit. His truck could carry700pounds of sand each time. The sand cost$143per ton. Originally, it took12pickup truck loads to fill the pit. What fraction of the sand had been blown away by the storm?

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Answer Key

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Brüche Mathematik Middle School Math Brüche

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