M + 20 = 9
u need to subtract 20 from both sides because u want to isolate m
m + 20 = 9
m + 20 - 20 = 9 - 20
m = - 11
Ok so this might be a bit confusing but I hope u understand it. Because the problem is in seconds, I tried to stick to seconds. In an hour there are 60 minutes and in those 60 minutes there are 3,600 seconds. Now in 25 seconds the mule deer can run 1/4 mile. So think for a second how many seconds it would take for it run a full mile. If u do the math then u would get 25*4 which is 100 seconds to run a full mile. Going back to our 3,600 seconds, all u have to do is divide it by 100 to get the miles. So 3,600/100 is 36. The mile deer runs 36 miles in an hour. I hope this was of help to u
Step-by-step explanation:
<em>Given </em><em>points </em>
<em>(</em><em> </em><em>6</em><em> </em><em>,</em><em> </em><em>7</em><em>)</em><em> </em><em>and </em><em>(</em><em> </em><em>4</em><em>,</em><em> </em><em>2</em><em>)</em>
<em>Slope </em><em>(</em><em>m) </em>
<em>=</em><em> </em><em>(</em><em>y2 </em><em>-</em><em> </em><em>y1) </em><em> </em><em>/</em><em> </em><em>(</em><em>x2 </em><em>-</em><em> </em><em>x1) </em>
<em>=</em><em> </em><em>(</em><em> </em><em>7</em><em>-</em><em>2</em><em>)</em><em> </em><em>/</em><em> </em><em>(</em><em>6</em><em>-</em><em>4</em><em>)</em>
<em>=</em><em> </em><em>5</em><em>/</em><em>2</em>
Answering your question on "9 students can make a poster in 10 hours. How many students should join them so that they all together can make this poster in 6 hours" its 13 students