For this case, the first thing we must do is calculate the total profit.
We have then:
Then, we look for the number of coins.
For this, we need the total profit (which we already calculate) and the amount of profit per coin.
We have then:
Answer:
The amount of coins that was on the set is:
Answer:
the 2nd one
Step-by-step explanation:
The standard form of a linear equation: Ax + By = C.
The slope-point formula:
![y-y_1=m(x-x_1)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}](https://tex.z-dn.net/?f=y-y_1%3Dm%28x-x_1%29%5C%5C%5C%5Cm%3D%5Cdfrac%7By_2-y_1%7D%7Bx_2-x_1%7D)
We have:
![J(-3,\ 11)\to x_1=-3,\ y_1=11\\K(1,\ -3)\to x_2=1,\ y_2=-3](https://tex.z-dn.net/?f=J%28-3%2C%5C%2011%29%5Cto%20x_1%3D-3%2C%5C%20y_1%3D11%5C%5CK%281%2C%5C%20-3%29%5Cto%20x_2%3D1%2C%5C%20y_2%3D-3)
Substitute:
![m=\dfrac{-3-11}{1-(-3)}=\dfrac{-14}{4}=-\dfrac{7}{2}\\\\y-11=-\dfrac{7}{2}(x-(-3))\\\\y-11=-\dfrac{7}{2}x-\dfrac{21}{2}\ \ \ \ |\cdot2\\\\2y-22=-7x-21\ \ \ |+22\\\\2y=-7x+1\ \ \ \ |+7x\\\\7x+2y=1](https://tex.z-dn.net/?f=m%3D%5Cdfrac%7B-3-11%7D%7B1-%28-3%29%7D%3D%5Cdfrac%7B-14%7D%7B4%7D%3D-%5Cdfrac%7B7%7D%7B2%7D%5C%5C%5C%5Cy-11%3D-%5Cdfrac%7B7%7D%7B2%7D%28x-%28-3%29%29%5C%5C%5C%5Cy-11%3D-%5Cdfrac%7B7%7D%7B2%7Dx-%5Cdfrac%7B21%7D%7B2%7D%5C%20%5C%20%5C%20%5C%20%7C%5Ccdot2%5C%5C%5C%5C2y-22%3D-7x-21%5C%20%5C%20%5C%20%7C%2B22%5C%5C%5C%5C2y%3D-7x%2B1%5C%20%5C%20%5C%20%5C%20%7C%2B7x%5C%5C%5C%5C7x%2B2y%3D1)
Answer: JK: 7x + 2y = 1
The answers are 84100 and 97400
Answer:
base times height divided by two. Answer is 144 ft