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IrinaK [193]
3 years ago
11

HELP If 45 cookies will server 15 students. How many cookies are needed 30 students?

Mathematics
2 answers:
katrin2010 [14]3 years ago
5 0

90 cookies will be needed for 30 students


ivann1987 [24]3 years ago
4 0
If 45 cookies serve 15 students, and you need to find how many cookies will serve 30 students, simply multiply 45 by 2 which will give you 90

90 cookies serve 30 students
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The number of oranges a grocery store bought this year was 15% more than the number of oranges bought last year. This year the s
snow_tiger [21]

Answer:

The original number of oranges purchased is 260

Step-by-step explanation:

Let the original number of oranges purchased be x

We are given that The number of oranges a grocery store bought this year was 15% more than the number of oranges bought last year.

So, Oranges bought this year = x+15\%x=x+\frac{15}{100}x=1.15x

We are given that This year the store bought 299 oranges.

So, 1.15 x= 299

x=\frac{299}{1.15}

x=260

Hence the original number of oranges purchased is 260

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A bacteria culture starts with 500 bacteria and doubles in size every half hour.1

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We are told “. . . doubles in size every half hour.” Let’s make a table of the time and population:

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P(t) = 500 · 2

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