3 years ago

Should you estimate while dividing decimals?

Mathematics

1 answer:

Sholpan [36]3 years ago

4 0

You should if the question tells you to, if it doesnt then it shouldnt matter

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A supermarket sells 2 cans of ground coffee for 18.50. The cost varies directly with the number of cans. How much do 5 cans of c

xz_007 [3.2K]

The answer is $46.25. Here is how I found it out: I did 18.50 divided by 2 to get the cost of one can then I simply did the cost of one can (which was $9.25) times 5 to get the cost of 5 cans. And I got 46.25 so $46.25 is your answer. Hope this helped you answer the question and know how to find the answer of this kind of question in the future!

7 0

3 years ago

Parvinis older than Jan, who is

MatroZZZ [7]

Using the arrangements formula, it is found that there are 24 ways for them to stand in line so that the youngest person is always first, and the oldest person is always last.

<h3>What is the arrangements formula?</h3>

The number of possible arrangements of n elements is given by the factorial of n, that is:

$A_n = n!$

In this problem, we have that there are 6 people. The youngest person(Leslie) has to be first, while the oldest(Parvinis) has to be last, while the remaining 4 can be arranged, hence the number of ways for them to stand in line is given by:

$A_4 = 4! = 24$