Step-by-step explanation:
........................................
Answer:
The Answer is: 47 1/4
Step-by-step explanation:
11/8a + 5/4a = 18
Create a common denominator for he coefficient of a:
11/8a + 2/2 * 5/4a = 18
11/8a + 10/8a = 18
21/8a = 18
Multiply both sides by the inverse of 21/8:
8/21 * 21/8a = 18 * 21/8
a = 378/8 or 189/4 or 47 1/4
Answer:
3/5
Step-by-step explanation:
First you would need to add the amount of people who play only basketball, or only baseball. That would be 18. You would then put it in fraction form as 18/30. You can simplify that fraction to 3/5. In decimal form that would be .6 and as a percent 60%.
Answer: 258
Step-by-step explanation:
Since, the sum of GP is,
where r is the common ratio,
a is the first term,
n is the number of term,
Here, series is, 6, -12, 24, -48, _ _ _ _
Which is a GP ( Because there is common ratio in the given consecutive terms )
So, for the above series, a = 6, r = 
and n = 7,
⇒ 
⇒ 
⇒ 
⇒ 
Thus, the sum of the 7 terms of the given series is 258.
