Answer:
Step-by-step explanation:
6.
P(even)=4/8=1/2
=50 %
7.
P(8)=23/50
=46 %
The answer of all of this is 18 because 18.1 months so if you do the math you get 18-7x+20^2
Answer:
A reflection over the line x=3
Step-by-step explanation:
X: earn per hour during the week
y: earn per hour during the weekend
13x + 14y = 250.90
15x + 8y = 204.70
Multiply the first equation by 4 and the second equation by 7
52x + 56y = 1003.6
105x + 56y = 1432.90
Subtract the first equation from the second:
53x = 429.30
x = 429.30/ 53
x = 8.10
Solve any of the equation for y:
15x + 8y = 204.70
y = [204.70 - 15(8.10)]/8 = 10.40
y - x = 10.40 -8.10 = 2.30
Answer: she earns $2.30 per hour more during the weekend than during the week.
