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2 years ago

A bag of suger costs $2.12 & contains 145 tablespoons of suger. what is the cost per tablespoon?

Mathematics

2 answers:

KIM [24]2 years ago

8 0

Answer:

0.01462069 cost per tablespoon

Step-by-step explanation:

a bag of sugar costs $2.12

145 tablespoons of sugar

145:2.12 is the ratio

1:x where x represents per tablespoon cost

2.12 / 145 = 0.01462069 which rounds up to 0.02

Check if it correct:

145 x 0.01462069 = 2.12

Blizzard [7]2 years ago

7 0

I don’t think it’s right, but I got $0.02

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Answer with Step-by-step explanation:

Permutation : It is an arrangement of r elements out of n elements.

Combination : it is a selection of r element out of n elements .

Suppose we have a set

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If two elements are taken at a time then

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Using combination formula

$\binom{n}{r}=\frac{n!}{r!(n-r)!}$

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Total number of outcomes determined by permutation have more outcomes.

Because permutation is an arrangement of elements therefore, it consider order of arrangement of element but combination is a selection of elements it does no consider order of elements

Arrangements of two elements out of 3 elements

{1,2},{2,3},{2,1},{3,2},{1,3},{3,1}

By using combination if two elements taken at a time then combination

{1,2},{2,3},{1,3}

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3 years ago

There are 13 books on a shelf. 6 of these books are new. (a) What is the ratio of new books to used books? (b) What is the ratio

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