Answer:
x = 50 miles
Step-by-step explanation:
Equation One: y = 40 + 0.2x
Equation Two: y = $1x = x
All you need to do is equate the two ys which represent the total cost for each company. Your question is when are they equal? So make them equal, and you will find out.
x = 40 + 0.2x Subtract 0.2x from both sides of the equation.
x - 0.2x = 40 Combine like terms
0.8x = 40 Divide both sides by 0.8
0.8x/0.8 = 40/0.8
x = 50 miles.
Answer:
Exactly one solution
Step-by-step explanation:
4x -2y = 8
2x +y = 2
Multiply the second equation by 2
4x +2y = 4
Add the two equations together
4x -2y = 8
4x +2y = 4
-------------------
8x = 12
x = 12/8
We know there will be one solution
Answer:
C) 2+7i is the correct answer.
Step-by-step explanation:
simplify by combining the real and imaginary parts of each expression. in this question, the variable i represents an imaginary number.
1 yard is 36 inches
so 5 yards are 180 inches
1 hour is 60 minutes
so in 60 minutes she paints 180 inches
or in 1 minute she paints 3 inches
Answer: -4, -3, -2
Step-by-step explanation:
By inspection, we know 
is a root.
We can thus rewrite the equation as
