4. The total number of tickets sold at the Friday night football game was 1,650. Each adult ticket cost $3.50 and each student ticket cost $2.00.
The total revenue for ticket sales was $4,650. Which system of
equations could not be used to determine the number of adult
tickets, a, and student tickets, s, sold at the game?
a + s = 1650
A) 3.5a + 2s
4650
1650 - Sa
B) 3.5a + 25
4650
a + s = 1650
C) 3.5a - 4650
2s
D) a+s=1650 2a+3.5s= 4650

10 ! in a race, nick is 50 feet in front of jay after ten seconds. how fast can nick run, if jay can run 20 feet per second?

Asquare has a side that measures 11 units. what is the area of a circle with a circumference that equals the perimeter of the square? use 3.14 for π, and round your answer to the nearest hundredth. 1519.76 units2 379.94 units2 616.56 units2 154.14 units2

Michelle and julie work at a catering company. they need to bake 264 cookies for a birthday party that starts in a little over an hour and a half. each tube of cookie dough claims to make 36 cookies, but michelle eats about 1/5 of every tube and julie makes cookies that are 1.5 times as large as the recommended cookie size.it takes about 8 minutes to bake a container of cookies, but since julie's cookies are larger, they take 12 minutes to bake. a. how many tubes should each girl plan to bake? how long does each girl use the oven? b. explain your solution process what did you make? c. what assumptions did you make?