Answer:
89.6%
Step-by-step explanation:
The probability a random person shares your birthday is 1/365, or 0.27%. That means the probability that they don't share your birthday is 364/365, or 99.73%.
So the probability that you meet 40 people who don't share your birthday is:
P = (364/365)^40
P = 89.6%
Answer:
in 8 years each school will have about 1,040 students
Step-by-step explanation:
let 'x' = years
y = 30x + 800
y = -25x + 1240
30x + 800 = -25x + 1240
55x = 440
x = 8
Answer:
180
Step-by-step explanation:
87b-179+957/87
Replace b with 4
87*4-179+957/87
Evaluate 87*4=348 and 958/87=11
348-179+11=169+11=180
Solve equation [1] for the variable u
[1] u = v
// Plug this in for variable u in equation [2]
[2] 8•(v ) - 4v = -32
[2] 4v = -32
// Solve equation [2] for the variable v
[2] 4v = - 32
[2] v = - 8
// By now we know this much :
u = v
v = -8
// Use the v value to solve for u
u = (-8) = -8
Solution : {u , v } = { -8,-8}
Answer:
20%
Step-by-step explanation:
Hope this helped