This problem can be solved using proprtions. Once you set up the proportion, the calculations are easy.
Let x = number of pens made in 1 second.
Now, you just cross multiply and solve.
9 = 3x
x = 3
The rate is 3 pens per second.
P=2l+2w first step is to subtract the 2l on both sides to get p-2l=2w. Now divide by 2 on both sides to get p/2-l=w
Answer:
(8 terms) 9, 3, 5, 4, 1, (3 terms)
Step-by-step explanation:
Assuming your sequence is ...
7, 3, 9, 6, 4, 1, 3, 7, 9, 3, 5, 4, 1, 7, 6, 5
The proposed sequence must have an even number of odd terms, so must be one of ...
4 +1 +3 +7 +9 = 24
7 +9 +3 +5 +4 = 28
9 +3 +5 +4 +1 = 22
3 +5 +4 +1 +7 = 20
The 5-number sequence you're looking for is 9, 3, 5, 4, 1.