We call the ratio between two directly proportional quantities the constant of proportionality. When two quantities are directly proportional, they increase and decrease at the same rate. While these two quantities may increase or decrease, the constant of proportionality always remains the same.
Answer:2.2
Step-by-step explanation:100.8-98.6=2.2
Answer:
8090.54
Step-by-step explanation:
30.8*6.6*39.8
Answer:
The angle that the ramp makes with the ground is 11.54°
Step-by-step explanation:
From the image attached, we can see that the length of 17 1/2 ft corresponds to the hypotenuse in a right triangle, the length of 3 1/2 ft corresponds to the opposite side.
We can use the fact that the sin(θ) =
to find the angle that the ramp makes with the ground.
![sin(\theta)=\frac{3.5}{17.5}](https://tex.z-dn.net/?f=sin%28%5Ctheta%29%3D%5Cfrac%7B3.5%7D%7B17.5%7D)
The angle is equal to
![\theta = sin^{-1}(\frac{3.5}{17.5} )\\\theta = 11.54\°](https://tex.z-dn.net/?f=%5Ctheta%20%3D%20sin%5E%7B-1%7D%28%5Cfrac%7B3.5%7D%7B17.5%7D%20%29%5C%5C%5Ctheta%20%3D%2011.54%5C%C2%B0)
Answer:
10 pieces
Step-by-step explanation:
basically you divide 7.5 by .75 which equals 10.
You do that because you are seeing how many 3/4 inch pieces are in 7 and a half inches of ribbon and 7 1/2 = 7.5 and 3/4= .75