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Matematica
Middle School Math
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1.  Il Professor Crump sostiene che la sua teoria sia corretta. Afferma "la concentrazione di krill è ridotta del1/3ogni volta che passa un piccolo branco di misticeti". Considera un'area dell'oceano in cui la concentrazione di krill è37/m3. Se la teoria del Professor Crump fosse corretta, quale ci aspetteremmo fosse la concentrazione di krill dopo che un piccolo branco di balene è passato e si è cibato? Arrotonda la tua risposta al numero intero più vicino.

2.  If83su100grasshoppers are immune to a pesticide after five years of use, how many would be expected to be immune in a population of2.5million after five years of use?

3.  Un recente incendio boschivo vicino a Littleville ha distruttothree-fifthsof the trees in Bigtree National Forest. The forest covers3820km2. There is now about50tonnellate di legname recuperabile per km2in the burned area. The part of the forest that was not destroyed by fire will not be open to the salvagers. Assuming the trees are evenly distributed throughout the park, about how long will it take to remove all the salvageable wood at a rate of51 1/4tons per day? Round your answer to the nearest whole number.

4.  One-third of the class grew peas, one-third grew carrots, and one-third grew beans. The class consisted of63students of whichfive-seventhswere girls. The teacher chose the three groups to be as equal in their boy-girl composition as possible. How many boys and girls were assigned to each team?

5.  Some sea turtles can swim ten90times faster than tortoises can walk. Based on this information, if a sea turtle can swim at a rate of20MPH, at what rate can some tortoises walk? Express your answer as a fraction.

6.  In un branco di973zebre, circasix-seventhsl'un percento di tutti gli animali è stato ferito attraversando il fiume. Quanti sono stati feriti?



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Iscritti a edHelper - Crea un nuovo stampabile
La soluzione include anche le domande
La soluzione fornisce solo le risposte
Nessuna soluzione
Not a subscriber?  Sign up now for the subscriber materials!

Frazioni
Matematica
Middle School Math
Frazioni

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