Answer:
1 5/6, 2 1/3, 2 3/5
Step-by-step explanation:D
Y=5a-3b
Y=5(12)-3(4)
Y=60-12
Y=48
You don't have a sign between b and c in the equation, so I cannot help you with the last operation
Answer:
y = 30
Step-by-step explanation:
We can use ratio's to solve this
40 20
----- = -----------
100 20 + y
Using cross products
40 * (20+y) = 20*100
Distribute
800 + 40y = 2000
Subtract 800 from each side
40y = 2000-800
40y = 1200
Divide by 40
y = 1200/40
y =30
Answer:
4 times it is tails
Step-by-step explanation:
Sample Space: 1H, 1T, 2H, 2T, 3H, 3T, 4H, 4T
H= heads
T= tails
Event is is tails; 1T, 2T, 3T, 4T
4 times or 50% chance
