3. A zookeeper is monitoring the supply of grain and hay that she has to feed the animals for the week. She currently has eight pounds of hay. One pound of hay
feeds the animals for three days. The grain that she has to feed the animals is
shown in the graph below. Given the rate at which the zookeeper is giving the
animals hay and grain, on which day will she have the same amount of grain and
hay remaining?
Grain Supply
10
9
8
Number of Pounds of Grain Left
6
5
4
3
2
0 1 2 3 4 5 6 7 8 9 10
Days
your answer
I