Tickets to a concert cost $50 for each orchestra seat and $40 for each balcony seat. If 1,500 tickets were sold to earn $69,000, how many
orchestra-seat tickets were sold?
A
600
B 750
h
900
1,380

H. the number of orchestra seat is 900

Step-by-step explanation:

Step one:

let the number of orchestra seat be x

and balcony seat be y

cost of orchestra= $50 each

cost of balcony =$40 each

total tickets= 1500

x+y= 15001

amount earned= $69000

50x+40y=690002

The system of equation for the situation is

x+y= 15001

50x+40y=690002

from 1, x=1500-y

put this in equation 2

50(1500-y)+40y=69000

75000-50y+40y=69000

-10y=69000-75000

-10y=-6000

divide both sides by -10

y=-6000/-10

y=600

put y= 600 in equation 1

x+600= 1500

x=1500-600

x=900

answer: 20

step-by-step explanation: subtract the minimum date value from the maximum data value to find the date range. in this casem the date range is 42 - 22 = 20

hope this ! : ) ~zane

the answer is 489

step-by-step explanation: