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Middle School Math
Matemáticas
Middle School Math
Decimales

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Name _____________________________
Date ___________________
Decimales
Completa.

1.  The trees of a rainforest make a dense canopy high above the ground. Huge insects are common here. Snakes crawl on the ground and hang from vines and tree limbs. It is not a place I would like to be, but apparently some people find it irresistible. Believe it or not there is a rainforest in Washington State. The Hoh Rainforest is located on the Olympic Peninsula, one thousand, one hundred thirty miles from my home. If we drive there and average51.7miles per hour, how long will it take us to reach the rainforest?

2.  Nicholas collects aluminum cans and takes them to the recycling center every week. He put recycling boxes in all the classrooms, the cafeteria, and the teachers' lounge. He put a sign on each box asking people not to put anything but aluminum cans in them. Every week, though, Nicholas finds objects other than aluminum cans in the recycling boxes. He estimates that twenty percent of the weight of the material in the boxes is non-recyclable junk. The total weight of all the items collected in the recycling boxes this week was one hundred thirty-three pounds. What was the weight of the aluminum cans, rounded to the nearest tenth pound?

3.  * Esta es una hoja prehecha.
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4.  A new element has been discovered on planet Q—Blutonium. Blutonium is quite dense (48g/cm3) and very rare. It is worth91.7million dollars a gram. It cost the local laboratory2.7million dollars to purchase a sample of the new element. What was the volume of the piece of Blutonium the lab purchased? Round your answer to the nearest ten-thousandth of a cm3. (hint: volume = mass / density)

5.  Whoozits are weird. They can be broken into any fractional part desired and then later be reassembled without harm. Sometimes even fractional parts of whoozits are shipped around the country to be assembled with other fractional parts to make new whole whoozits. SLUGCO had 23.552 whoozits they needed to ship to Timbuktu. Someone decided the easiest way to do it would be to put the same amount of whoozits in each box. If they had sixteen boxes, how many whoozits would go in each box?

6.  According to Newton's second law of motion, the force required to accelerate an object is equal to the mass of the object times the acceleration (F = ma). If the force applied to an object is 0.0064 kgm/s2and the acceleration is 0.16, then what is the mass of the object? You may assume that the friction is zero.



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suscriptores de edHelper - Cree un imprimible nuevo
Clave también incluye las preguntas
La hoja de respuestas sólo da las respuestas
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Middle School Math
Matemáticas
Middle School Math
Decimales

This worksheet still contains English.
edHelper is working on the translation