Answer:
the area of the circle depends on the square of the radius. Because half of the circle is called radius. So multiplying the radius by two gives us the full circle
The first aircraft had 192 seats, the second aircraft had 104 seats and the third aircraft had 88 seats
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
An independent variable is a variable that does not depends on other variable while a dependent variable is a variable that depends on other variable.
Let a represent the sits in the first aircraft, b represent the second aircraft and c represent the third aircraft.
The first aircraft has 88 more seats than the second aircraft. Hence:
a = b + 88 (1)
Also, The third aircraft has 16 fewer seats than the second aircraft:
c = b - 16 (2)
If their total number of seats is 384:
a + b + c = 384 (3)
From the three equations:
a = 192, b = 104, c = 88
The first aircraft had 192 seats, the second aircraft had 104 seats and the third aircraft had 88 seats
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4 represents four thousand people. the rest represents 921. So the 4 means four thousand.