Answer:
-5/6
Step-by-step explanation:
3(1/6+2/9)+(-2)
3(7/18)+(-2) working what is in parenthesis.
7/6-2 reduced the numbers ( 3 and 18) with greatest common divisor . which is 3
-5/6 calculate the difference
You cant. simplify simplify because they're two different numbers
Answer:
45:63
Step-by-step explanation:
7+5=12
12u-->108
1u--> 9
5u-->45
7u-->63
Answer:
20 20/27
Step-by-step explanation:
(2 2/3)(3 1/3)(2 1/3) = (8/3)(10/3)(7/3) = 560/27 = 20 20/27
_____
<em>Additional comment</em>
The first two numbers can be written as a difference and a sum:
= (3 -1/3)(3 +1/3)(2 1/3)
= (3·3 -1/3·3 +3·1/3 -1/3·1/3)(2 1/3)
= (9 -1/9)(2 +1/3) = 9·2 +9·1/3 -1/9·2 -1/9·1/3 = 18 +3 -6/27 -1/27
= 20 20/27
Answer:
The common difference of the progression is 3.
Step-by-step explanation:
Given:
First term of the AP = (a) = -8
Ratio of 7th and 9th term = 5:8
So,
General term of an AP, Tn= a+(n-1)d
Where 'd' is the common difference.
equation...(i)
equation...(ii)
According to the question.
⇒ 
...cross-multiplying the terms.
⇒ 
⇒ 
⇒ 
...subtracting 40d and adding 64 both sides.
⇒ 
⇒ 
...dividing both sides with 3.
So the common difference of the progression is 'd' = 3.
