Let x equals to the time can chris unload the ship’s cargo
2x equals to the time can julissa unload the ship’s cargo
The can be solve by establishing an equation that they can
do the job in 6 hours
(1/x) + (1/2x) =1/ 6
X = 9 hrs can chris do the job alone
2x = 18 hrs can julissa do the job alone
Given:
Arithmetic sequence -5, 13, 31, 49..........
We are to find the explicit formula of the sequence above. An explicit formula provides a binding formula for finding nth term.
To find the formula, we need to know the first term and the common difference.
The common difference is the difference between each successive terms of the sequence.
In the given sequence, the common difference is 18;
13-(-5) = 18
31 - 13 = 18
49 - 31 = 18
n calculation of the nth term
1 -5 -5 + 18(0) = -5
2 13 -5 + 18(1) = 13
3 31 -5 + 18(2) = 31
4 49 -5 + 18(3) = 49
Since the common difference is 18, we can now derive the formula;
b(n) = -5 + 18(n-1)
n is the position of the term
Any number in the sequence can be derived using the explicit formula
-5 + 18(n-1)
Answer: no
Step-by-step explanation:
First write the formula. Length + width + height.
4+3=7 So to find the height of the prism you subtract the volume by 7. So this is how it looks.
4+3=7; 9-7=2. Hope I helped
