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Tcecarenko [31]
2 years ago
12

a science teacher has 0.4 L of seawater she gives each of her 22 students a container and a 5ml spoon she then asks her students

to put two spoons full of seawater into their containers how many milliliters of sea water will be left after all 22 students have filled their containers
Mathematics
2 answers:
OleMash [197]2 years ago
6 0

teacher has 0.4 L of sea water , it means 0.4*1000 ml = 400 ml of sea water , she has.

Now every student has 5 ml spoon with them and there are a total of 20 students.

The teacher has asked every student to put 2 spoons of seawater into their container .

Now 1 spoon = 5ml

2 spoon = 10 ml


22 students are there it means

there are 44 spoons.

44 spoons = 44* 5 ml = 220 ml


It means Student put 220 ml seawater in total

And Teacher had 400 ml.

Now , Teacher is left with = 400 - 220 = 180 ml

DIA [1.3K]2 years ago
4 0
It equals 41 since the amount of students are parallel towards the radius of pie
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Alternate Method:

Since the repetition can occur in this case, i.e. a sandwich chosen on one day can also be chosen on other day, the following formula of permutations ca be used:

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