For this case, we have initially had 42 tickets.
Then Ethan and his brother sold the same amount of tickets to end up with 8.
Then, we can propose the following equation:
Where x and y represent the amount of tickets sold by Ethan and his brother respectively. Since each sold the same amount, then x = y:
Thus, each sold 17 tickets.
Answer:
Each brother sold 17 tickets
Answer:
x = 2±sqrt(11)
Step-by-step explanation:
x^2 -4x - 7 =0
Add 7 to each side
x^2 -4x -7+7 =0+7
x^2 -4x =7
To complete the square take the coefficient of the x term and divide by 2 and then square it. Add it to both sides
-4 /2 = -2 then square
(-2)^2 = 4
Add 4 to both sides
x^2 -4x+4 =7+4
x^2 -4x+4 = 11
Factor the left side into (x-b/2)^2
(x-2)^2 =11
Take the square root of each side
sqrt((x-2)^2) =±sqrt(11)
x-2 = ±sqrt(11)
Add to to each side
x-2+2 = 2±sqrt(11)
x = 2±sqrt(11)
Answer:
A = 54cm^2
Step-by-step explanation:
A = (base × height)/2
base = 9cm
height= 12cm
A = (9 × 12)/2
A = 108/2
A = 54
Answer:
5% of $22 is $1.10.
22+1.10=23.10
23.10 is less than 24
Step-by-step explanation:
