Answer:

Step-by-step explanation:
we have
<em>The equation of the first line</em>
------> equation A
<em>The equation of the second line</em>
------> equation B
Solve the system of equations by elimination
Multiply equation A by -4 both sides
--------> equation C
Adds equation B and equation C

<em>Find the value of x</em>
substitute the value of y


Multiply by 3 both sides


therefore
The solution to the system of equations is the point 
$14
7•2=14
Peter bought both tickets and the each cost $7 so 7 times 2 would be 14
Answer:
Tricia travels at a rate of 50 miles per hour
Step-by-step explanation:
1,2, 3, 4, 5, 6, 10, 12, 15, 20, 30 and 60.