Answer:
witch one
Step-by-step explanation:
Answer:
Step-by-step explanation: the answer is most definietly b
Answer:
-50x+-5
Step-by-step explanation:
-5.10x=-50x
-5.1=-5
Answer:
25
Explanation:
In order to solve this the easiest way you can use equivalent fractions.

Since 4 times 5 equals 20 we can multiply 5 times 5 to get our answer.

25 is the answer. But, if we couldn't have gotten to 20 through the multiplication we could use a proportion. That would look like the initial problem but instead of a "?" we would use a variable. I will use <em>t</em> for total.

So now we have our problem set up. The next step is to cross multiply. 4 by <em>t</em> and 5 by 20.

And now we can solve it like a normal algebra problem.

Either way, we get 25.
Answer:
y = 3x - 5
Step-by-step explanation:
You use the equation y = mx + b, and you plug in what you know. The slope is already 3 so you do y = 3x + b
after that, you plug in y and x, because (2,1) are the values of x and y.
1 = 3(2) + b
1 = 6 + b
subtract 6 from both sides to isolate the b
-5 = b