Amanda read 15 pages of her 150-page book in 2 hours. At this rate, how long will it take her to read the entire book? a. 2 hours b. 5 hours c. 10 hours d. 20 hours @dtan5457
well thats easy, just divde
if its 15 per /2 h
so for instance 30 pages will be 4 hrs
pages = k*(#hours)
and 45 will be 6 hrs so theres a great enough example i made it plain and simple
use the point (2 , 150), and find the constant k, for the line, through the origin
also you can multiply 15 pages per hrs in your answer to see what you get
use the point (2 , 15) pages = k*hours 15 = k* 2 k = 15/2 pages per hour pages = (15/2)*(hours)
150 = (15/2) * (hours) hours = ...
\[hours = \frac{ 150 * 2 }{ 15 }\]
well ill just go up to 60 pages... 60 is 8 hrs there just keep that going or do what dan said above as another method which works for you :}
it think the answer is 20 hours
yep
the rate of reading is 15/2 pages per hour it is a direct variation y = (15/2)x where y=pages and x=hours let y = 150 pages, solve for x, you get 20 , in case you want to know how to go about it
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