The cost of one dozen bananas is 20 then 9 bananas is
2 answers
18
well, 9 is 3/4 dozen, so it will cost 3/4 of 20, or 15
Or, since the unit cost as the ratio of money:bananas is constant,
x/9 = 20/12
Or, since the unit cost as the ratio of money:bananas is constant,
x/9 = 20/12
1 answer