Answer:
x > 80,000
Step-by-step explanation:
3600+1.02x<2000+1.04x
The first thing we need to do is to isolate the x's and get all of them on one side, let's start off by subtracting 2,000 from both sides of the equation.
1,600+1.02x<1.04x
Now, subtract 1.02x from both sides to get both the x's on one side.
1600<0.02x
Divide by 0.02 to solve for x.
80,000<x
We can flip the sign and swap the places of the number and variable so that x is on the left side.
x > 80,000
So when y=32 it is 4x more than the original y which means they've multiplied it by four. Whatever you do to one you have to do to the other side so you multiply 2 by 4 to get 8 so x=8
The average would be -3. You add all the low temps up and get -15 then you divide it by the amount which was 5 temps... And get -3.
Answer:
5.714 liters of the 5% solution and 4.286 of the 40%.
Step-by-step explanation:
Let x be the volume of 40% solution and y = volume of the 5% solution.
x + y = 10
0.40x + 0.05y = 0.20(x + y)
From the first equation x = 10 -y so we have:
0.40(10 - y) + 0.05y = 0.20( 10 - y + y)
4 - 0.40y + 0.05y = 2
-0.35y = -2
y = 5.714 liters of the 5%.
and x = 10 - 5.714 = 4.286 liters of the 40% solution.
Step-by-step explanation:
