Small oranges cost 8p each, large oranges cost 13p each. Some oranges are bought and the bill is exactly $1. How many of each size of oranges are bought?
6 small and 4 large oranges
8x + 13y=100 y must be even number less than 7. 2&6 not good and only y=4 is the right one x=6, y=4
Two large circles are tangent to each other and the parallel lines. Two small circles are tangent to the large circles and to one of the lines. If the distance between the centers of the small circles is 96, what is the distance between the centers of the large circles?
A first class stamp costs 26c, a second class stamp costs 21c. I buy some stamps and the cost is $1.93. How many of each price have I bought?
