Answer:
44 ounces
Step-by-step explanation:
Begin by setting up your equation in the following format:
(Percent)(Amount) + (Percent)(Amount) = (Percent)(Amount + Amount)
In this case, your equation should look like this:
(0.15)(x) + (0.20)(11) = (0.16)(x + 11)
where x stands for the number of ounces of the 15% alcohol solution needed.
Next, we can begin simplifying to solve for x. Your work should look similar to this:
(0.15)(x) + (0.20)(11) = (0.16)(x + 11)
0.15x + 2.2 = (0.16)(x + 11)
~ Multiply both sides by 100 to eliminate all of the decimals ~
15x + 220 = 16(x + 11)
15x + 220 = 16x + 176
15x = 16x - 44
-x = -44
x = 44
This means that 44 ounces of 15% solution must be mixed with 20% solution to make 16% solution
~Hope this Helps!~
The equation would look like: p - 5.16 = 15.48
because the coupon subtracts 5.16 from p and the price you pay is 15.48
Solve the equation by adding 5.16 to both sides
p = 20.64
The original price of the shirt is $20.64
What triangle are you talking about?
Hello!
We can put in numbers for x to get points of the graph
2(-4)^2 + 16(-4) + 30 = -2
One point is (-4, -2)
2(-3)^2 + 16(-3) + 30 = 0
The next point is (-3, 0)
2(-5)^2 + 16(-5) + 30 = 0
The third point is (-5, 0)
The parabola has a vertex of (-4, -2) and goes through the points (-3, 0) and (-5, 0)
Hope this helps!
There are two ways to do this:
Way 1- Since you know there are 4 people and each will pay 25%, you know that every person will pay equally / the same amount so you can just do 115/4 and get $28.75 per person
Way 2- You can convert 25% into a decimal by multiplying it by 100 and getting 0.25 and multiplying 0.25 x 115 to get 25% of 115, which is what everyone will pay and you get B $28.75
