Answer:
5/18, 13/18
Step-by-step explanation:
The basic probability of anything is Specific Outcome / Total Outcomes
The specific outcome here is pulling a purple marble. We see there are 5 purple marbles therefore there are 5 ways to get them. The total outcomes are the total number of marbles which is 18. Therefore, the answer is 5/18
The complement of a probability is 1 minus the original probability, so, it would be 1 - 5/18 here getting us 13/18 as the answer.
Answer:
396cm
Step-by-step explanation:
first shape is 180
second shape is 216
Answer:
11
/20
Step-by-step explanation:
Step 1- We can't subtract two fractions with different denominators. So you need to get a common denominator.
So we multiply 3 by 10, and get 30.
Then we multiply 2 by 4, and get 8.
Next we give both terms new denominators -- 4 × 10 = 40.
So now our fractions look like this:
30
/40
−8/40
Step 2- Since our denominators match, we can subtract the numerators.
30 − 8 = 22
So the answer is:
22
/40
Step 3-
Last of all, we need to simplify the fraction, if possible. Can it be reduced to a simpler fraction? Yes we can!
11
/20 is the answer
-- A "mixed number" is (a whole number) plus (a fraction).
-- Two mixed numbers = (two whole numbers) and (two fractions).
-- The smallest whole number is ' 1', so when you add up all of that,
the smallest possible sum is (2) plus (two fractions).
-- So the sum must always be greater than 2 .
============================================
<em>THAT'S IF BOTH MIXED NUMBERS ARE POSITIVE </em>.
<em>If one of them is negative</em>, then it's easy to do:
(3 and 1/2) + negative (1 and 1/2) = <u>2</u>
(25 and 7/10) + negative (23 and 7/10) = <u>2</u>
Answer:
6ab.
Step-by-step explanation:
3 x a x 2 x b
= 3 x 2 x a x b ( because multiplication is commutative, which basically means you can move the numbers and variables anywhere in the expression).
= 6ab ( we leave out the multiplication signs. They are understood.)
