Let's first break it down to the time 8 people need for one wall. That would be 10 minutes, right? If one person would have to do it in stead of 8, you'd expect him to take 80 minutes.
To paint 7 walls, he would nee 7x80 = 560 minutes. 10 people would do that 10 times faster, ie., 56 minutes.
I know puzzles like these always have a mindtrick. Did I miss anything?? ;-)
Answer:
40/.40 = 100
You can buy 100 pounds of food.
Step-by-step explanation:
Answer:
The y-intercept y = 4x - 5 is (0,-5).
Step-by-step explanation:
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Answer:
d (d^6-3)
the 6 is the exponent
Step-by-step explanation: