Answer:
<u>Part A</u>
One method for solving a system of equations is <u>solving by substitution</u>.
Substitute the variable in one equation with the expression of the variable in the other equation.
Replace the y of "y = 2x - 2" with "y = 4x" to make "4x = 2x - 2".
<u>Part B</u>
The only integer for which both equations give the same result is x = -1.
Therefore, the solution is x = -1
<h3><u>Part C</u></h3>
To solve the equation graphically, graph the lines y = 4x and y = 2x - 2.
The x-coordinate of the point of intersection is the solution to the equation 4x = 2x - 2
(see attached)
Answer:
1:2.33
Step-by-step explanation:
Divide 107.8 by 46.2 to get how much 107.8 equals when 46.2 equals 1. you get 1:2.33.
Answer:
6z^2
Step-by-step explanation:
both of them are divisible by 6 with the smallest exponent being two
Answer:
1. 0.35 miles per minute
2. 5.25 miles
Step-by-step explanation:
1. speed is 21 miles per hour
speed per minute = 21/60 = 0.35 miles per minute
2. distance covered in 15 minutes = 15*0.35
= 5.25miles