30/3= 10(if you do 30 divide by 3 then you need to divide 24 by 3 to)
24/3= 8
10x2= 20(same if you do 10 time 2 then you need to do 8 times 2)
8x2= 16
then add 30 and 24 with 20 and 16.
answer:40 in 50 sec
Answer: x^2+29x+39
You would first have to set up an equation, which would be ((2x+9)⋅(x+6))-((x-5)⋅(x-3)) to find the area of both rectangles.
Then you can simplify it, which gives us 2x^2+21x+54-(x^2-8x+15)
Then simplify it even more which gives us 2x^2+21x+54-x^2+8x-15
Then we can get our answer: x^2+29x+39
Hope that helps :)
The square root of 3 plus the square root of 2 =3.14626
Answer:
(2, -6)
Step-by-step explanation:
(2,-6) because that's the middle of you count.
The probability that a student buys coffee OR a muffin before class is 55%
<h3>How to determine the probability?</h3>
The given parameters are:
P(Coffee) = 30%
P(Muffin) = 40%
P(Tea) = 20%
P(Coffee and Muffin) = 15%
P(Tea and Muffin) = 10%
The probability that a student buys coffee OR a muffin before class is
P(Coffee or Muffin) = P(Coffee) + P(Muffin) - P(Coffee and Muffin)
This gives
P(Coffee or Muffin) = 30% + 40% - 15%
Evaluate
P(Coffee or Muffin) = 55%
Hence, the probability that a student buys coffee OR a muffin before class is 55%
Read more about probability at:
brainly.com/question/24756209
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