The local community theater sold a total of 240 tickets for Saturday night’s performance. They sold 180 more full-price tickets than discount tickets. Which system of equations can be used to model this situation? StartLayout Enlarged Left-Brace 1st Row f + d = 240 2nd Row f = 180 EndLayout
StartLayout Enlarged Left-Brace 1st Row f + d = 240 2nd Row f minus d = 180 EndLayout
StartLayout Enlarged Left-Brace 1st Row f minus d = 240 2nd Row f = 180 + d EndLayout
StartLayout Enlarged Left-Brace 1st Row f minus d = 240 2nd Row f = 180 d EndLayout

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

you need to give us more information since we can't answer

the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.