Answer (quite straightforward):
650
= 65 x 10
3565.50 is the average if she made the same amount each month
Saw A = 150 planks/30 seconds = 5 planks per second
Saw B = 130 planks/ 13 seconds = 10 planks per seconds
5 + 10 = 15 planks per second total
225 planks / 15 planks per second = 15 seconds
Answer: 15 seconds
Answer:
9900
Step-by-step explanation:
Round 900 down because 47 is closer to 900 than 1000.
