likes math hates math total
like science 41 22 63
hates science 7 31 38
total 48 53 110
if a student likes science..there are 63 who like science....what is the probability that the student does not like math...of those that like science, 22 do not like math.
so the probability is : 22/63 = 0.0349 = 34.9% <=
Comment
I'm going to do this two ways, one using a calculator and one not.
Let the total amount of his estate be x.
Equation and Solution
If you have a calculator with an a b/c key on it you can do this problem easily, or at least the fractional part will be easy.
First: develop the equation
(4/17) x + (7/13)x + 2/3 x + 2 000 000
Solve the equation
Use the a b/c key on your calculator if you have one. If not go down the second solution part. Put a fraction in as follows.
4 a b/c 17 + 7 a b/c 13 + 2 a b/c 3 =
You should get 1 r 16 r 51
What this translates into is 1 292 / 663 of x
or 955/663 x + 2000000
So the total of fhis estate is
(955/663) x + 2000000 <<<< answer In decimal form you get
1,44 x + 2000000 <<<< answer in decimal.
Note: you cannot solve this to the exact amount of his estate because the fractional amount exceeds x which assumed to be the total amount of his estate.
By hand
Find the ;lowest common denominator of 13 17 and 3. Since all of them are prime numbers the lowest common denominator is 13 * 17 * 3 = 663
\
Next set up the 3 fracttions so the denominator = 663
4 / 17 =( 4 * 13 * 3) / 663 = 156 / 663
7/13 = 7 * 17*3 / 663 = 357 / 663
2/3 = 2*13 * 17 / 663 = 442 / 663
Now add these up 156/663 + 357/663 + 442/663 = 955 / 663 This is irreducible
This fraction is over 1 so it cannot represent the total amount in his estate. It is too large.
(955/663)x + 2000000 <<<<<< fractional answer
1.44x + 2000000 < decimal answer.
Answer:
Somewhere around 6 or 9
Step-by-step explanation:
Answer: (c)
Step-by-step explanation:
Given
length of two sides of a triangle is 6 cm and 11 cm
In a triangle length of the third side lies between the sum and subtraction of the other two sides
Suppose x is the length of the third side so
