4 units = blue
1 unit = yellow
total: 5 units = 40
1 unit = 40 ÷ 5 = 8
yellow: 8
blue: 8×4 = 32
Answer:
I think it is A
Step-by-step explanation:
Answer:
For Gwen:-
x + 10y = 30
x + 15y = 40 - Tristan
if we subtract the above equations:-
we get
5y = 10
y = 2
That is the cost of each ticket is $2.
Step-by-step explanation:
2x - 2 < -12 or 2x + 3 > 7
2x < -12 + 2 or 2x > 7 - 3
2x < -10 or 2x > 4
x < -5 or x > 2
Answer:
x = ± 
Step-by-step explanation:
Given
2x² - 9 = 11 ( add 9 to both sides )
2x² = 20 ( divide both sides by 2 )
x² = 10 ( take the square root of both sides )
x = ± ← exact solutions
