Answer:
10 days
Step-by-step explanation:
2x + 4y = 6
4y = -2x + 6
y = -1/2x + 3/2
slope = -1/2
y = mx + b
y = -1/2x + b
At point (6, 4)
4 = -1/2(6) + b
4 = -3 + b
b = 7
Equation : y = -1/2x + 7
To solve this problem you must apply the proccedure shown below:
1. You must use the formula for calculate the surface area and the volume of the tank:
2. Solve for in the second equation and substitute it into the first one.Then, you have:
3. Now, derivate:
4. When you solve for , you obtain:
5. Now, you must calculate :
Therefore, the dimensions are:
The sides of the base of the tank:
The height of the tank:
Answer:
10
Step-by-step explanation:
13x + 5x = 180
18x = 180
x = 10
It's basically asking 75% of what number is 63 so x * 75% = 63
75% in decimal form is .75
divide 63 by .75 which is 84.
so 75% of 84 would be 63.