Let the number of child tickets sold be x, and number of adult tickets be y, then
5.70x + 9.50y = 543.40 . . . (1)
y = 2x . . . (2)
Putting (2) into (1), gives
5.7x + 9.5(2x) = 543.4
5.7x + 19x = 543.4
24.7x = 543.4
x = 543.4/24.7 = 22
Therefore, 22 child tickets were sold.
Ans: -4.3
Integers are all whole numbers negative, positive, and 0
Hope this helped :)
Answer:
Step-by-step explanation:
givens
x1 = 3
x2 = 4
y1 = 4
y2 = 7
formula
d = sqrt( (x1 - x2)^2 + (y1 - y2)^2 )
solution
d = sqrt( (3 - 4)^2 + (4 - 7)^2 )
d = sqrt ( 1 + 3^2)
d = sqrt( 1 + 9)
d = sqrt( 10)
In order to simplify this expression, we need to multiply the numeric values together and the variables together.
So we have:
Therefore the correct option is the third one.
If you would like to rewrite 3 * x + 4 * y = 10 using function notation, you can do this using the following steps:
3 * x + 4 * y = 10
4 * y = 10 - 3 * x /4
y = 10/4 - 3/4 * x
y = 5/2 - 3/4 * x
The correct result would be y = 5/2 - 3/4 * x.
