a 13 foot ladder is leaning against a brick wall. the top of the ladder touches the wall 12 feet above the ground. the bottom of the ladder is 5 feet from the bottom of the wall. what is the sine of the angle formed by the ground and the base of the ladder?

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.

It would take her 20 minutes.