Answer:
I have it in above pic hope it
Let x = number of cups of ingredient B if 2 cups of ingredient A are used. Set up a proportion: (1/2)/(1 2/5) = (2)/x. Cross multiplying we get (1/2)x = (1 2/5)(2)
(1/2)x = 14/5, so x = 28/5 = 5 3/5 cups.
Complete Question
The complete question is shown on the first uploaded image
Answer:
The coefficient is ![r =0.81](https://tex.z-dn.net/?f=r%20%20%3D0.81)
Step-by-step explanation:
From the question we are told that
![cov(x, y )= 1260](https://tex.z-dn.net/?f=cov%28x%2C%20y%20%29%3D%201260)
![s_x^2 = 1600](https://tex.z-dn.net/?f=s_x%5E2%20%3D%20%201600)
![s_y^2 = 1225](https://tex.z-dn.net/?f=s_y%5E2%20%20%3D%20%201225)
Generally the coefficient of determination is mathematically represented as
![r = [ \frac{cov(x,y)}{ \sqrt{s_x^2} * \sqrt{s_y^2} } ]^2](https://tex.z-dn.net/?f=r%20%20%3D%20%5B%20%5Cfrac%7Bcov%28x%2Cy%29%7D%7B%20%5Csqrt%7Bs_x%5E2%7D%20%2A%20%20%5Csqrt%7Bs_y%5E2%7D%20%7D%20%20%20%5D%5E2)
substituting values
![r = [ \frac{ 1260}{ \sqrt{1600} * \sqrt{1225} } ]^2](https://tex.z-dn.net/?f=r%20%20%3D%20%5B%20%5Cfrac%7B%201260%7D%7B%20%5Csqrt%7B1600%7D%20%2A%20%20%5Csqrt%7B1225%7D%20%7D%20%20%20%5D%5E2)
![r =0.81](https://tex.z-dn.net/?f=r%20%20%3D0.81)
Download the Photo Math app for free they will give you all the answers with step by step
Answer:
y=1
Step-by-step explanation:
5y + 4 = 4y + 5 4y + y + 4 = 4y + 4 + 1 4y + 4 + y = 4y + 4 + 1 Kill the similar parts from both sides y = 1