Answer: the cost of admission for each child is $10
the cost of admission for each adult is $14
Step-by-step explanation:
Let x represent the cost of admission for each child.
Let y represent the cost of admission for each adult.
The cost of admission to a popular music concert was 162 dollars for 12 children and 3 adults. This is expressed as
12x + 3y = 162- - - - - - - - - - - - -1
The admission was 122 dollars for 8 children and 3 adults in another music concert. This is expressed as
8x + 3y = 122- - - - - - - - - - - - -2
Subtracting equation 2 from equation 1, it becomes
4x = 40
x = 40/4
x = 10
Substituting x = 10 into equation 1, it becomes
12 × 10 + 3y = 162
120 + 3y = 162
3y = 162 - 120
3y = 42
y = 42/3
y = 14
Answer:
226 cm^2
Step-by-step explanation:
It’s literally a rectangular prism If you put it together. The side with 2 cm and 11 cm , the surface area is 22 and since this is a rectangular prism, that means there is a second of the same kind. Then you get the larges box, since you know that the top side is 11 and the left side is 7, you multiply that * 2 which you then get 154. You add that up with the side that you solved before so 154 + 44 = 198. You then figure out the left side 7 * 2 * 2 (because there are two of them). 28 + 198 = 226 cm^2.
I believe x = 24 if that is what you are asking.
Brainliest please?
Answer:
Step-by-step explanation:
3x + y = 7
-2x - y = 9
x = 16
answer is B
3(16) + y = 7
48 + y = 7
y = -41
Answer:
1. Line BD = 180 degrees
2. Angle C = 58 degrees
3. 180 - 58 = 122 degrees (angle x)
4. Angle B = 60 degrees
5. Sum of interior angles = 180 degrees
6. 180 - angle B - angle C = angle A
7. 180 - 60 - 58 = angle A
8. 62 = angle A (angle y)
Angle x is 122 degrees
Angle y is 62 degrees
Step-by-step explanation:
