To solve by substitution, you need to fill in the value for either x or y. Since y = x + 5, you already have the y value. It's x + 5. Now you need to find x before you can go any further. So let's take 5x + y = 3 and fill x + 5 in for y.
5x + y = 5
5x + x + 5 = 3
Now solve for x.
5x + x + 5 = 3
6x + 5 = 3
6x = 3 - 5
6x = -2
x = -2/6 or -0.33
Now solve x + 5 for y.
y = x + 5
y = -0.33 + 5
y = 4.67
So x = -0.33 and y = 4.67
To find out how much Sybil would make in a certain amount of time, the equation would be:
h * 12
(hours times number of dollars per hour, which is 12)
Hope this helps!! :)
<span>The answer is "A", seperating water from nitrogenous wastes by passive diffusion because it only makes sense to separate the bad stuff (wastes) from the water which in turn processes the waste through and out the kidney.</span>
Lan wants to run less than 7/12 miles. It says to find out a fraction with a denominator of 4 and which is less than 7/12.
Let's assume the required fraction to be x/4 such that x/4 is less than 7/12.
So we must have multiples of 3's that should be less than 7, we have only two choices 3 < 7 or 6 < 7.
It means x = 1 or x = 2, and the required fraction would be 1/4 or 2/4.
2/4 is simplified to 1/2 and the question says to have denominator 4.
Hence, final answer is 1/4
Answer:
i did a wild guess and i got the answer is 2
Step-by-step explanation:
2*7=14
14-4=10
10-2=8
