Answer:
-4
Step-by-step explanation:
x . y
0 . -4
1 . -2
Answer:
(6,20) because both lines pass through this point
Step-by-step explanation:
To solve this you can use the substitution method.
Since both of them are equal to y, substitute one of the equations for y, that way you have x+14 = 3x+2. From here you continue to simplify.
Eliminate x from either side of the equation. For example, subtract x from the side that says "x+14". (Make sure you are also subtracting it from the other side of the equal sign as well.
Once you do this you should now have 14 = 2x+2
In order continue, you now have to get x by itself. So now subtract 2 from both sides of the equation. After doing this, you should have 12 = 2x
You then simplify x by dividing both sides by 2. This will get you x = 6
Now that you have the x-value, substitute that into either of the two equations (it is recommended you substitute it into both equations to make sure you have the correct x-value). For example: If I substitute x into Line C's equation, I will now have y = 6 + 14.
6 + 14 is 20, therefore you're y-value is y = 20
Surface area is the area of every surface. Since this is a cube, we can find the surface area by multiplying the area of one of the faces by six. The area of any face is 64 square inches. So, the surface area is 384 square inches
Answer:
50 liters
Step-by-step explanation:
Amount of salt in the 35% solution + amount of salt in the 70% solution = amount of salt in the 45% solution
0.35 x + 0.70 (20) = 0.45 (x + 20)
0.35 x + 14 = 0.45 x + 9
5 = 0.1 x
x = 50
First you need to find out how many cm of water that will be saved after brushing your teeth 3 times.
379 x 3 = 1137
Next you need the convert the cm to liters. You do this by dividing the cm total by 1000.
1137 / 1000 = 1.137
So you would save 1.137 liters of water while brushing your teeth 3 times.
Hope this helps!!