On monday, 350 people bought tickets to the county fair. tickets cost $7 for
adults and $3 for children. the total revenue from ticket sales on monday
was $2050. the system of equations below represents the number of people
and total sales for the county fair on monday, where x represents the number
of child tickets and y represents the number of adult tickets.
x+y = 350
3x + 7y = 2050
how many adult tickets were sold on monday?

100 points, hi, i’m not sure how to get the equation from the graph and table.

As part of an annual fundraiser to raise money for diabetes research, diane joined a bikeathon. the track she biked on was 1,920 yards long. diane biked 38.5 laps. her sponsors agreed to donate an amount of money for each mile she biked. how many miles did she bike? first fill in the blanks on the left side using the ratios shown. then write your answer. given ratios: 5280ft / 1 mi , 1 mi /5280 ft , 1,920 yards / 1 lap , 1 lap / 1,920 yards , 3 ft / 1 yard , 1 yard / 3 ft. blanks: 38.5 laps / 1 yard x (blank) x (blank) x (blank) = (blank) miles i'm really confused on how to do this, and the explanations aren't exactly . if you could walk me through how to do this, it would be greatly appreciated.

Non-euclidean geometry was discovered when, in seeking cleaner alternatives to the fifth postulate, it was found that the negation could also be true a. true b.false