To do 4x> 12, you divide 4x by 4 to isolate variable then divide 12 by 4, because if you do something on one side you have to do on the other so... x= 3 ..hope that helped . Also 75% of 96 Its 72.. its just 75/100 = x/96 then use cross products to find out that
1/2 because he has 16 pieces gives 4/8 which is a half and therefore has a half left
Krista's pattern will have the highest amount.
Here is were each person would be at the end of 5 days.
Anita:
5(2)^8 = 160
Juan:
3(3)^8 = 729
Krista:
8(3)^5 = 1944
To make an effective argument for your assignment, you should create tables for each person and show how they changed.
If the customer buys 4 pencils he will get the 5th one free.
This means, in every 5 pencils, he is getting one free pencil. 60 pencils can be seen as 12 groups of 5 pencils each. In each group he is getting 1 free pencil, so in 12 groups, the customer will get 12 free pencils.
So, we can conclude that, if the customer buys 60 pencils on sale, he will get 12 of them as free.