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PBWaffles4864
24.04.2020 •
Mathematics
Ingrid and Bobby work as secretaries. Over the last six hours, Ingrid typed a 4,500 word document, a 9,000 word document, and a 6,750 word document. Bobby took five hours to type a 1,750 word document and a 14,000 word document. Together, how many words did they type per minute?
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Ответ:
54
Step-by-step explanation:
*Ingrid*
Total words are 4500+900+6750=20250 words
Rate per hour will be 20250÷6=3375 words per hour
*Bobby*
Total words will be 1750+14000=15750
Rate per hour will be 15750÷5=3150 words per hour
Average rate per hour will be
(3375+3150)/2=3262.5 worda per hour
Rate per minute will be 3262.5÷60=54.375 words per minute
Rounded off, this is approximately 54 words per minute
Ответ:
60 words per minute
Step-by-step explanation:
Ingrid typed following number of words in 6 hours:
4,500 word document, a 9,000 word document, and a 6,750 word document.
So, the total number of words that Ingrid typed in 6 hours = 4500 + 9000 + 6750 = 20250 words
Bobby typed following number of words in 5 hours:
1,750 word document and a 14,000 word document.
So, the total number of words that Bobby typed in 5 hours = 1750 + 14000 = 15750 words.
In total both Ingrid and Bobby took 5 + 6 = 11 hours to type 20250 + 15750 = 36000 words
We have to find how many words did they type per minute. Lets convert, 11 hours to minutes first.
1 hour = 60 minutes
So,
11 hours = 11 x 60 = 660 minutes
Ingrid and Bobby typed 36000 words in 660 minutes. dividing 36000 by 660 will give us the number of words they both typed per minute.
So, the number of words they both typed per minutes =
words per minute
Ответ: