Carly looked at a map of her neighborhood and saw that the streets form 16 intersections. Some streets on the map were represented by horizontal lines, and some streets were vertical lines. How many streets could there be in Carly's neighborhood?

Answer 1

Chris, Take a sheet of paper and draw a map with 16 intersections. Then count the streets.

Answer 2

Draw four parallel horizontal lines on a piece of paper. Then see how many vertical lines you have to draw to create sixteen intersections.

Answer 3

the answer is 29