3 years ago

If 45 cookies will serve 15 students how many cookies are needed for 30 students

1 answer:

5 0

Well 15x2=30 and 45 cookies will serve 15 student and you nee to serve 30 students. So you need to multiply 45x2 because 15x2=30.
1
45
x
2
90

so 90 cokkies are needed to serve 30 students.

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The price of a notebook was

Pie

Old price: p1 = $ 3.90;

New price: p2 = $ 3.40.

The percentual decrease is given by

d(%) = [ (p2 - p1) / p1 ] * 100 %

d(%) = [ (3.40 - 3.90) / 3.90 ] * 100 %

d(%) = [ - 0.50 / 3.90 ] * 100 %

d(%) = - 0.128 * 100 %

d(%) = - 12.8 % (approximately)

So the price fell 12.8 % approximately.

I hope this helps. =)

4 0

3 years ago

Round 3.73 to the nearest whole number

julsineya [31]

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Step-by-step explanation: