Kibble Chow
2.8 miles per day
No, there is not enough sports drink to last them 8 months
0.12
4.28
<span>let x = the number of liters of the 20% solution.
let y = the number of liters of the 60% solution.
you want x + y to be equal to 40 liters.
x is the number of liters total in the first solution.
y is the number of liters total in the second solution.
you want .2 * x + .6 * y to be equal to .35 * 40
.2 * x is the number of liters of acid in the first solution.
.6 * y is the number of liters of acid in the second solution.
.35 * 40 is the number of liters of acid in the final solution.
you have two equations that need to be solved simultaneously.
they are:
x + y = 40
.2x + .6y = .35*40
simplify these equations to get:
x + y = 40
.2x + .6y = 14
you can solve by substitution or by elimination or by graphing.
i will solve this one by graphing.
this means to graph both equations and find the intersection.
the graph looks like this:
the graph says the intersection is at the coordinate point of (25,15).
this means that x = 25 and y = 15.
x is the number of liters of the 20% solution.
y is the number of liters of the 60% solution.
the formula of .2x + .6y = 14 becomes .2 * 25 + .6 * 15 = 14.
simplify this equation to get 14 = 14.
this confirms the solution is good.
</span>
Since it is one term that is being squared, we can distribute the square.
So, just multiply the current exponent by 2.
6*2 = 12
1*2 = 2
So
A rational number is a number that can be written as a ratio. That means it can be written as a fraction, in which both the numerator (the number on top) and the denominator (the number on the bottom) are whole numbers. The number 8 is a rational number<span> because it can be written as the fraction 8/1.
I hope my answer has come to your help. God bless and have a nice day ahead!
</span>
Answer:
2,149 in³
Step-by-step explanation:
The volume of a cylinder with radius r and height h is
V = πr²h.
Here, d = 12 in, so r = (12/2) in, or 6 in.
Then the volume of this cyl. is:
V = π(6 in)²(19 in) = 2148.85 in³. This is best rounded up to 2,149 in³