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

Ratio and rate problems
Asked Dec 07, 2012
for every 15 students you need 45 cookies. There are 2 groups of 15 students in 30. (15x2=30) so that means you need 2 groups of 45 cookies because you have 2 groups of 15 students.

SO the answer is 45x2=90

Hope that helps :)
Answered Dec 07, 2012
thanks bae
Answered Oct 26, 2014
45 divided by 15 equals 3. 30x3=90
Hope I helped
Answered Sep 28, 2016

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