All tickets to a musical have the same cost. A group bought 7 tickets and paid a total of $100. Write an equation that can be used to determine the cost c in dollars for each ticket.

$14.28

Step-by-step explanation:

Given data

Lets say the cost of one ticket is x dollars

so

hence for 7 tickets the cost c can be given as

c= 7x

100= 7x

x= 100/7

x= 14.28

Hence the cost of a ticket is $14.28

(0,-3) see attached graph

step-by-step explanation:

a. to solve the system, graph the two equations.

x = y+3 becomes y=x-3 has m=1/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move up 1 unit and 1 unit to the right. plot a point and connect.

y=-4x+3 has m =-4/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move down four units and to the right 1 unit. plot a point and connect.

the solution is the point (x,y) where the two lines intersect. by the graph below it is (0,-3).

b. to solve by substitution, substitute y = -4x-3 into x= y+3

x= (-4x-3) +3

x=-4x

5x=0

x=0

now substitute x = 0 back in to find y.

y= -4(0)-3

y=0-3

y=-3

solution is (0,-3)

c. use elimination by adding the equations together.

x-y=3

4x+y=-3

5x=0

x=0

then substitute into one equation to find y.

y=-4(0)-3

y=-3

4+4+2x

or

2x+8

step-by-step explanation: