It is 6 over 5. 6 treats divided by 5.
Answer:
21 = .75x - .1x + 3
Step-by-step explanation:
Daria made a profit of $21.00 selling lemonade. She sold her lemonade for $0.75 per cup, received a tip of $3 from a neighbor, but also had to buy each plastic cup she used for $0.10 per cup. Write an equation to represent this situation.
Total Profit = $21.00
x= number of cups
Price of each cup = $0.75
She paid $0.10 for cups used by her
Tip from neighbor= $3
Equation:
Expected Total cost of cups = 0.75 * x
= 0.75x
Cost of cups used = 0.10 * x
= 0.1x
Daria used 0.1x of the total cups that should be sold
Total sold= Expected cups to be sold - used cups
= 0.75x - 0.1x
Profit = Total sold + tip from neighbor
21.00 = 0.75x - 0.1x + 3
21 = .75x - .1x + 3 is the equation
Add 2x
4=6x
Divide 6x
1.5=x
You’re welcome :)
Answer:
B. f−1(x) = The quantity of 4x plus 3, divided by 5
Step-by-step explanation:
Given
![f(x) = \frac{5x-3}{4}](https://tex.z-dn.net/?f=f%28x%29%20%3D%20%5Cfrac%7B5x-3%7D%7B4%7D)
We have to find the inverse of the function
![Let\\f(x) = y\\y=\frac{5x-3}{4}\\4y=5x-3\\4y+3=5x\\\frac{4y+3}{5} =y](https://tex.z-dn.net/?f=Let%5C%5Cf%28x%29%20%3D%20y%5C%5Cy%3D%5Cfrac%7B5x-3%7D%7B4%7D%5C%5C4y%3D5x-3%5C%5C4y%2B3%3D5x%5C%5C%5Cfrac%7B4y%2B3%7D%7B5%7D%20%3Dy)
So, the inverse of f(x) is:
![\frac{4y+3}{5}](https://tex.z-dn.net/?f=%5Cfrac%7B4y%2B3%7D%7B5%7D)
Hence,
The correct answer is:
<u>B. f−1(x) = The quantity of 4x plus 3, divided by 5 ..</u>