12 miles in 48 minutes
12/48 or 1/4 miles per minute
Times 60 is 15 miles per hour
Answer:When an angle is its own supplement, that means that the angle, plus itself, will equal 180 degrees.
Step-by-step explanation:
Step-by-step explanation:
We just subsitue 3 for x and -4 for y, so we get
![3(3) - 5( - 4) = 9 + 20 = 29](https://tex.z-dn.net/?f=3%283%29%20-%205%28%20-%204%29%20%3D%209%20%2B%2020%20%3D%2029)
So
![a = 29](https://tex.z-dn.net/?f=a%20%3D%2029)
![7(3) + ( - 4) = b](https://tex.z-dn.net/?f=7%283%29%20%2B%20%28%20-%204%29%20%3D%20b)
![21 - 4 = 17](https://tex.z-dn.net/?f=21%20-%204%20%3D%2017)
![b = 17](https://tex.z-dn.net/?f=b%20%3D%2017)