Answer:
"proportional to"
Step-by-step explanation:
The sign ∝ means 'is proportional to'. This is used to show that one variable of value is proportional to another value or variable.
Example:
- x ∝ y ('x' is proportional to 'y')
Hope this helps.
Answer:
8.72
Step-by-step explanation:
sqrt of 76 is 8.717 which rounded to the nearest hundereth is 8.72
45 adult tickets were sold.
adult tickets = a
childrens tickets = b
a + b = 65
6a + 3.5b = 340
Subtract a from the equation on top to get b = 65 - a
Substitute into the second equation 6a + 3.5(65 - a) = 340
Simplify to make 6a + 227.5 - 3.5a = 340
6a - 3.5a = 340 - 227.5
Combine like terms so that 2.5a = 112.5
Divide both sides by 2.5 to isolate the variable a
Your final answer is a = 45
