1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mestny [16]
3 years ago
6

Thomas wants to invite Madeline to a party. He has an 80% chance of bumping into her at school. Otherwise, he’ll call her on the

phone. If he talks to her at school, he’s 90% likely to ask her to a party. However, he’s only 60% likely to ask her over the phone. What is the probability of Thomas inviting Madeline to the party at school?
Mathematics
1 answer:
Alexandra [31]3 years ago
5 0

Answer:

84%

Step-by-step explanation:

The probability of Thomas bumping into her at school is 80%, so the probability of not bumping into her is 100% - 80% = 20%.

If he doesn't bump into her (20% chance), he will call her, and the probability of asking her in this case is 60%, so the final probability of asking her in this case is:

P_1 = 20\% * 60\% = 12\%

If he bumps into her (80% chance), the probability of asking her is 90%, so the final probability of asking her in this case is:

P_2 = 80\% * 90\% = 72\%

To find the probability of Thomas inviting Madeline to the party, we just have to sum the probabilities we found above:

P = P_1 + P_2

P = 12\% + 72\% = 84\%

You might be interested in
Need help plzzzzzzzzzzz
Elena-2011 [213]
The answer is 16. I’ve done this before and i got a 100% on it! Good Luck!!
4 0
2 years ago
Read 2 more answers
Show the steps to solve the system of equation. x-2y+3z=-4 , 3x+y-z=0 , 2x+3y-5z=1
Taya2010 [7]

Answer:

x= -1,  y = 6,  z = 3

Step-by-step explanation:

let me solve it with Gaussian Elimination

8 0
2 years ago
How do you factor 6x² +7x-3? Please show the steps!
Gnesinka [82]
6x^2+7x-3=\ \ \ \ | write\  7x\ as\ -2x+9x\\\\ 6x^2-2x+9x-3=0\\\\ 2x(3x-1)+3(3x-1)=0\\\\\boxed{(2x+3)(3x-1)}=0
4 0
3 years ago
A racquetball club charges $10 for a one-month trial membership. After the trail month, the regular membership fee is $12 per mo
Furkat [3]
Membership is discounted $2 for first month
c=cost of one month
d=discount=$2
x=# of months
xc - 2= total cost
x for 1 month is 1, c is always 12, -2 is constant
1 x(12) - 2=10 for first month
8 months
8c -2=total cost for 8 months
8 x 12 - 2= 94 for 8 months

5 0
3 years ago
What is the length of bc round to the nearest tenth]
GalinKa [24]

Answer:

you didn't show us the image to see bc

8 0
2 years ago
Other questions:
  • FAST PLEASE
    10·1 answer
  • Every hour, a runner is able to run the same number of miles. If on his 3rd hour of
    6·1 answer
  • Which angle is adjacent to A. B. C. D.
    11·1 answer
  • The area of an 17-cm-wide rectangle is 374 cm squared. What is it’s length?
    8·1 answer
  • Last Question...Please help if you can...(25 points if you answer this)
    6·1 answer
  • Donald has <br> x twenty-dollar bills and 1<br> 10 ten-dollar bill.
    10·1 answer
  • What is (8.2*10^-3)*(2.0*10^2) in scientific notation
    10·1 answer
  • A farming council takes a large random survey of US adults in which they ask how many times they ate a
    7·1 answer
  • Year 11 math methods, help pls
    12·1 answer
  • If f(x) = -x-2, what is f¹(x)?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!