Answer:
The price of adult tickets = $27
The price of child tickets = $16
Step-by-step explanation:
The price of adult tickets = x
The price of child tickets = y
4x +3y = 156 ---------------------> equ 1
3x + 4y = 145 ---------------------> equ 2
multiply equ 1 by 3 ===> 12x + 9y = 468
multiply equ 1 by 4 ===> <u>12x + 16y = 580</u>
subtract , -7y = -112
y = -112/-7
y = 16
Substitute y value in equ 1,
4x + 3*16 = 156
4x + 48 = 156
4x = 156 - 48
4x = 108
x = 108/4
x = 27
The price of adult tickets = $27
The price of child tickets = $16
Answer:
12.5m
Step-by-step explanation:
I don't wanna type it lmco (laughing my cheeks off)
Answer:
No, a compound containing 12 atoms of sodium and 15 atoms of oxygen could not be sodium carbonate. When its ratio of atoms is reduced to the lowest terms, it is not the same as sodium carbonate. 4:5 ≠ 2:3
Step-by-step explanation:
Use ratios to solve this problem.
In sodium carbonate, the ratio for the number of atoms for sodium to oxygen (sodium:oxygen) is 2:3.
Check if the ratio for the compound with the ratio 12:15 is equal to 2:3.
Reduce the ratio 12:15 to lowest terms, just like how you would reduce a fraction. Find the GCF (greatest common factor). The left and right sides are both divisible by 3.
12/3 = 4
15/3 = 5
The ratio in the compound is 4:5.
4:5 ≠ 2:3
Since the ratios are not the same, the compound is not sodium carbonate.
0.133 because 5 mean you have to round up so it is 0.133
Answer:
the nth term is -3n+13.
so if you substitute n for 63, the answer would be -176
Step-by-step explanation:
