28. About 850 students out of 1250 students would say that their favorite food is pizza.
68 out of 100 is equal to 68%
We need to find 68% of 1250, since 1250 is 100%
68% out of 1250 is 850
29. 104 tickets were recieved.
First, we need to understand the question. 3 tickets are $53.25 and the total amount that was spent was $1384.50. REMEMBER for every 3 tickets they buy, they get one 1 ticket for free.
We need to divide 1384.5 by 53.25 so we can see how many tickets there were, but we need to multiply it by 3, since 53.25 is the price of 3, and not 1.
We get 26 × 3 = 78.
Since they give 1 free ticket per 53.25, we need to add 26 to 78 to get 104 tickets.
33. 1/2 = 4/8
The extremes are the outer numbers of a proportion, so in this case, it is 1 and 8
The means are the middle numbers of a proportion, so in this case, it is 2 and 4.
It is a proportion because they equal to each other
If you multiply 1 by 8 and 2 by 4, you get 8=8, meaning that 1/2 is equal to 4/8
27/74 = 12/98
This is not a proportion because they do not equal to themselves
I you multiply 27 by 98 and 74 by 12, you get 2646=888, which is not equal.
Hope this helps!
