Let's solve this system of equations through substitution.
We have these two equations.
-7x-2y=14
6x+6y=18
Now let divide the second equation by 6.
6x+6y=18 ----> x+y=3
Next, let us move y to the right side of the equation.
x+y=3 -------> x=3-y (x equals 3-y)
Because we found out that what x is in terms of y, we can input that in for every instance of x in this equation below.
-7x-2y=14 becomes -7(3-y)-2y=14 (Why? Because x equals 3-y!)
We have a one variable equation now and can solve for y.
-7(3-y)-2y=14
-21+7y-2y=14
5y=35
y=7
Plug in 7 for y in any equation to find x.
x+y=3
x+7=3
x=-4
answer: x=-4, y=7
12 fluid ounces of sweat an hour
Answer:
It would've been more difficult to solve and doing it as shown in EX:2 it's a way easier method to use and remember.
Answer:
Now Myra has 60 lines of code, no grid picture attached.
Step-by-step explanation:
If Myra removed 20% of the lines and she started with 75 lines of code, then she is removing 1/5 of those lines of code.
75 divided by 5 is 15, and 75 - 15 = 60
Now Myra would have 60 lines of code. It's unclear what grid you are talking about though - could you attach a picture of the grid you need to shade in?
The 64 ounce bottle of orange juice would have the greater percentage of water (75%) while the bottle of apple juice has only 40%
