2- for two hours ------> four inches of snow for x hours -----> y inches of snow the equation is 2/4 = x/ y
x= 2y / 4 for x is the hours and y is the inches
exercice 2 5 gr granula ----------------------> 1750 calories 2 gr granula ----------------------> n ?? calories
by cross multiplication n = 2 x1750 / 5 = 700 calories .
2- she wants to eat 175 calories so u put granula under granula and calories under calories to make this cross
5 gr granula ----------------------> 1750 calories ??? m granula ---------------------> 175 calories by cross multiplication m = 175 x 5 / 1750 = 0.5 gr of granula