Answer:
- $50 + $200 - $800
Step-by-step explanation:
You have to pay $50
This is a negative to your account: -$50
You win $200
This is a positive to your account: + $200
After you have to pay $800
This is a negative to your account: - $800
Total transaction
- $50 + $200 - $800
The expression that represent the situation is:
- $50 + $200 - $800
= - $650
Answer:
=$1920
Step-by-step explanation:
1. simple interest = (principle × rate × time) ÷ 100
principal: amount of money borrowed
rate: percentage at which you are to pay
time: timeframe in which u ought to repay
calculate what is in the brackets first
2. plug in the values
($1500×7×4)÷100 = $420
*calculate what is in the brackets first*
3. add the amount received when finished caluculating[in this case $420] to the original principal
4. $1500+$420=1$920
40 tens is another way of writing 4 hundreds because 40 tens would give you 400 and 4 hundreds also give you 400.
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:
X=63 y=27
Step-by-step explanation:
X and 117 are on a straight line. All straight lines = 180 degrees.
180 - 117 = 63
90 - 63 = 27
