(-1) 3x + 2y = 10.45
4x + 3y = 14.30
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x + y = 3.85
x = 1.55
y = 2.90
Answer:
yay
Step-by-step explanation:
Answer:
Step-by-step explanation:
Leaving leap years, a year contains 365 days.
For a group of 100 people, each person is independent of the other and probability of any day being his birthday has a chance of
a) Probability that exactly 3 people have same birthday = 
Each day is independent of the other
And hence no of days having exactly 3 persons birthday out of 100 persons is binomial with n = 365 and p =
Expected value of days = np = 
b) Distinct birthdays is binomail with p =1/365 and n = 365
Hence
expected value = np =1
Answer:
Area: 12x + 66
Perimeter: 2x + 35
Step-by-step explanation:
Area is the base and the height multiplied, 12(x) + 12(5.5), which is simplified to 12x + 66.
Perimeter is all the sides added together, (x + 5.5) + (x + 5.5) + 12 + 12, which is grouped to be 2x + 11 + 24, then simplified to 2x + 35.
Answer:
A, Harry has $27 more.
Step-by-step explanation:
I could be wrong but.
1) debit cards are of your money, if you have $14 in your account it means you have $14 that you can spend without owing anything.
2) credit cards allow you to borrow money with the expectation that you pay it back. So if you have $13 of credit, you owe $13 which I guess could be seen as -$13.
3) the distance between -13 and 14 is 27.
