P=3r + 2s you need to get all the numbers and variables on the other side of the equation so that s is alone.
P -3r = 2s Subtract the 3r from both sides.
P- 3r /2 =s now divide the whole amount P-3r by 2 and you've got your answer!
Answer:
The blank on the top is 0.31 because that is what you multiply 80 by
The blank in the middle is 24.8 because that's what you get when you multiply 80 by 0.31
The blank on the bottom is 0.31 because that is what you multiply 80 by
Step-by-step explanation:
Use proportions to solve
80/100 = x / 31
80*31 = 100x
2480 = 100x
x = 24.8
Check out the graph below. We see that (3,0) is a root or x intercept. More specifically, the graph only touches the x axis at this point, rather than cross over (in contrast to a root like (-2,0) ). We say that the root here is of multiplicity 2. The multiplicity is due to the exponent of 2 over the (x-3) factor.
You can also say that the graph is decreasing on the left side of (3,0) and then it bounces off the root x = 3 to increase afterward. In this region, the graph never goes below the x axis.
The book is 540 pgs.....she has read 405....that leaves (540 - 405) = 135 pgs left to read.
135 / 540 = 0.25 = 25% <== what she has left to read