Aconcert is being held in your hometown. 1500 tickets are sold. adult tickets are $10.50 and child's tickets are $7.50. if a total of $13950 worth of tickets were sold, determine how many adult tickets and how many child tickets were sold. 1st equation: 2nd equation: solution: x = and y =

x+y=1500

10.50x+7.50y=13950

multiply the first one by -7.5 to eliminate y

-7.5x-7.5y=-11250

3x=2700

x=900 adults for $9450

y=600 children for $450

Step-by-step explanation:

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.

y + 11 = (1/4)(x + 16)

step-by-step explanation: