4.6, 6.41, 6.46
Hope this helps her!
158 boys, and 163 girls, do this by dividing 321 by two(do get how many of each gender if #s were equal) subtract 2.5 to get boys, and add 5 to that to get girls
First, subtract px2 from both sides.
Now you have:
x3 - px2 = (1 - p) x1
Next, divide both sides by (1 - p)
So now you have
x3 - px2/(1 - p) = x1
...as your final answer
*You can decide if you want to leave the parenthesis in your final answer, I left them there so it could be visible where I put them. :)
2/3 hour . 1 hour = 60 minutes.
2/3 hour = (2/3) * 60
= 40 minutes.
20 pages took (2/3) hour = 40 minutes.
20 pages took her 40 minutes to read.
1 page = 40/20 = 2 minutes.
1 page took her 2 minutes to read.
