your friend ask you to bring ice cream to his party there are sevrel brands of ice cream each with a different price. write the formula that will help you find the price per gram for each brand.
x= price of carton of ice cream
y= number of grams in carton
z=price per gram

Question

your friend ask you to bring ice cream to his party there are sevrel brands of ice cream each with a different price. write the formula that will help you find the price per gram for each brand. 
 x= price of carton of ice cream
 y= number of grams in carton 
z=price per gram

anonymous · Answer

do you understand what per means mathematically?

anonymous · Answer

The formula would be z=x/y 

 This is because you are trying to solve for z (price per gram.) Which can be found by dividing the price of 1 carton (x) by the number of grams in 1 carton. (y) Hope this helps! :)