In a certain clothing store, 3 shirts and 5 ties cost $60, and 2 shirts and 3 ties cost $39. What is the cost of each shirt? If
s = the cost of a shirt and t = the cost of a tie, which system of equations represents the problem? 3t + 5s = 60 and 2t + 3s = 39 3s + 5t = 60 and 2s + 3t = 39 s + t = 60 and 5s + 8t = 99
If s is the cost of a shirt and you buy 3 of them, you represent that as 3s. Likewise with all the other numbers of articles of clothing you are given. The first situation then is 3s + 5t = 60. The second situation is 2s + 3t = 39.
In order to solve this we can first convert 3h 28m to 208 minutes. This will make it so we can find how many minutes it took her to run per mile. The way we do that is by dividing 208 by 26. This leaves us with 8 minutes per mile.
Let x-----> the measure of the angle formed by the wooden fence and grass
we know that in a right triangle tan x=opposite side angle x/adjacent side angle x opposite side angle x=13 ft adjacent side angle x=21 ft so tan x=13/21x=arc tan (13/21)-----> x=31.76°------> x=32°
