if a bottle of soda pop costs$2 and a large bag of chips is $3, write an equation in standard for that models the possible combinations if you have $15 .(let p=soda pop, c=chips.
if you bought only soda how many could you buy?
if you bought only 3 bottles of soda, how many bags of chips could you buy
With p being number of soda pops and c being chips, we get:
Soda only: 2p = 15, or , or 7.5 soda pops, rounded DOWN to
3 bottles soda: 2(3) + 3c = 15 -------> 6 + 3c = 15 -------> 3c = 15 - 6 ------> 3c = 9
, or 3
With $15, can be purchased