Answer:
-8x^2+26x-21
Step-by-step explanation:
(3-2x)(4x-7)
12x-8x^2-21+14x
-8x^2+12x+14x-21
-8x^2+26x-21
Answer: 74 adult tickets were sold on Wednesday.
Step-by-step explanation:
Let x represent the number of child admission tickets sold on Wednesday.
Let y represent the number of adult admission tickets sold on Wednesday.
On Wednesday, 128 tickets were sold. It means that
x + y = 128
At the movie theatre, child admission is $6.40 and adult admission is $9.70. The total ticket sales on Wednesday was $1063.40. It means that
6.4x + 9.7y = 1063.4- - - - - - - - - - 1
Substituting x = 128 - y into equation 1, it becomes
6.4(128 - y) + 9.7y = 1063.4
819.2 - 6.4y + 9.7y = 1063.4
- 6.4y + 9.7y = 1063.4 - 819.2
3.3y = 244.2
y = 244.2/3.3
y = 74
x = 128 - y = 128 - 74
x = 54
Answer:
r = 8
Step-by-step explanation:
The circumference of a circle is given by :
...(1)
We need to find the value of r when C = 16π
Solving equation (1)
So, the value of r is 8. Hence, the correct option is (b).
Answer:
A) 495 boys attend the school
B) 440 students are in Grades 5 to 8
Step-by-step explanation:
Find how many boys attend by multiplying 660 by 3/4
660(3/4)
= 495
Find how many students are in Grades 5 to 8 by multiplying 660 by 2/3
660(2/3)
= 440
So, 495 boys attend the school and 440 students are in Grades 5 to 8.
