Answer: Children tickets cost 7.50
Adult tickets cost 12.50
Step-by-step explanation:
Let a represent adult tickets
Let c represent child tickets
On the first day she sells 6 adult tickets and 5 children tickets for total of 112.50. This can be written as:
6a + 5c = 112.50 ...... equation i
On the second day she sells 8 adult tickets and 4 children tickets for the total 130. This can be written as:
8a + 4c = 130 ....... equation ii
6a + 5c = 112.50 ...... equation i
8a + 4c = 130 ....... equation ii
Multiply equation i by 4
Multiply equation ii by 5
24a + 20c = 450 ........ equation iii
40a + 20c = 650 ......... equation iv
Subtract iii from iv
16a = 200
a = 200/16
a = 12.50
Adult tickets cost 12.50
From equation ii,
8a + 4c = 130
8(12.50) + 4c = 130
100 + 4c = 130
4c = 130 - 100
4c = 30
c = 30/4
c = 7.50
Children tickets cost 7.50
Given the Scale of the Drawing as 3 : 1000
It means in the Drawing a Length of 3cm is Equal to 1000cm of the Actual Pool
It means in the Drawing a Length of 3cm is Equal to 10m of the Actual Pool
Given the Length of the Pool in the Drawing is 15cm
⇒ Actual Length of the Pool is 5 × 10m = 50m
Given the Width of the Pool in the Drawing is 7.5cm
⇒ Actual Width of the Pool is 2.5 × 10m = 25m
We know that Area of Rectangular Pool is Length × Width
⇒ Area of the Rectangular Pool = 50 × 25 = 1250m²
Answer: 75,83
Step-by-step explanation: add by 8 to every number
So for A Write all numerators above the least common denominator Add the numbers
7
-
12
