c + 2 a = 99
c + a = 66
------------------- subtract
0 + a = 33
so a = 33 and c= 33
Now you should be able to do the second one.
1. For every slice of bread a child takes, an adult takes 2 slices of bread. If there are 66 adults and children in all and 99 slices of bread are taken,
a. how many adults are there?
b. how many children are there?
2. There are 100 adults and children together. An adult could consume 3 buns while 3 children could only finish one bun. If 100 buns were consumed, how many adults were there?
2 answers
no I cant