A is aldult tickets
b is child tickets
b = 2/3 a
7a + 12b = 90
7a + 12 x 2/3 a = 90
7a + 8a = 90
15a = 90
a = 6; b = 4
n (AUB) = 59
Step-by-step explanation:
n(A U B) = n(A) + n(B) -n(A intersection B)
= 26+ 41- 8
= 59
Step-by-step explanation:
(2+3)(2-3)
=5×(-1)
= -5
good morning
have a great day
Answer:
therefore the side of the square is 2x + 5.
Step-by-step explanation:
i) let the side of the square be a
ii) therefore the perimeter of the square = 4a
iii) therefore 4a = 8x + 20
iv) therefore a = 2x + 5
therefore the side of the square is 2x + 5.
Ok anddddddddddddddddddddd
