Justin and his children went into a bakery and where they sell cookies for $0.75 each and brownies for $1.25 each. Justin has $15 to spend and must buy no less than 12 cookies and brownies altogether. If Justin decided to buy 7 brownies, determine the maximum number of cookies that he could buy.

8 cookies
1.25*7=8.75
8.75-15.00=6.25
6.25/0.75=8.333333...
Since you can’t but .3333 cookies
The most they can get is 8
7+8=15 and it’s more than twelve

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.