Answer:
the correct answer is B. 5 miles per hour
Step-by-step explanation:
if she walks 5 miles in a hour she can walk 2.5 miles in 30 minutes
Equation 1: y = -2x + 1
Equation 2: y = 2x - 3
Since both equations already have y isolated, we are able to simply set the right side of both equations equal to each other. Since we know that the value of y must be the same, we can do this.
-2x + 1 = 2x - 3
1 = 4x - 3
4 = 4x
x = 1
Then, we need to plug our value of x back into either of the original two equations and solve for y. I will be plugging x back into equation 2 above.
y = 2x - 3
y = 2(1) - 3
y = 2 - 3
y = -1
Hope this helps!! :)
Answer:
the answers are true, false, true.
Step-by-step explanation:
Answer: 31
How: If there are two negative signs like this, you would connect them together and make it into a addition sign where you then can add them.
