Traveling with the current a certain boat went 16km/h. Against the same current it only went 6km/h. Find the current and the spe
1 answer:
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As points, x-intercepts take the form 
, so to find the intercepts we can set 
and solve for 
.
From the first equation alone, we already know that
is a solution, which means one intercept is 
.
The second equation gives
so that the second intercept occurs at
.
So if
and 
, we have 
, giving C as the answer.
From the first equation alone, we already know that
The second equation gives
so that the second intercept occurs at
So if
Lets use the formula to solve this, where,
- R is the rate
- W is the number of workers/things
- T is time
- J is number of jobs/things
<em><u>"If it takes 10 seconds for 10 printers to print out 10 pages of paper"</u></em> - here -
W is 10 printers, T is 10 seconds, and J is 10 pages. We can write:
<u><em>"how many seconds will it take 50 printers to print out 50 pages of paper"</em></u><em> - here we use (previously found) to figure out T.</em>
<em></em>
So it will take 10 seconds for 50 printers to print 50 pages.
ANSWER: 10 seconds