Answer:
350 students
Step-by-step explanation:
Let:
a = number of adults attending
s = number of students attending
a + s = 950 (1) (given)
9a + 6.5s = 7675 (2) (cost per adult * number of adults + cost per student * number of students = total amount spent)
Looking for s. Multiply (1) by 9 then subtract eq (2), this will eliminate the variable a:
(1) 9a + 9s = 8550
- (2) 9a + 6.5s = 7675
-------------------------------
0a + 2.5s = 875
s = 875/2.5 = 350 students
Q.1 46 gallons per minute.
Q.2 44 trucks per day.
Q.3 837 new employees will need to be hired.
Q.4 51 cars will be parked in each row.
Q.5 17,503 pencils will be made in 23 seconds.
Q.6 72,633 letters of junk mail.
The scarves should each be 3 1/4 feet long
hope it helps
Cake=x
Pie=y
x+y=15
5x+7y=91
(x+y=15)-7
5x+7y=91
-7x+(-7y)=-105
5x+7y=91
-2x=-14
x=7
They sold 7 cakes
Answer:
9 is 75% of 12
Step-by-step explanation: