The formula for density is:
Mass/Volume, or in other terms, mass divided by volume.
So, lets look at our numbers:
We know our mass is 84 grams, and our volume is 12 cc. So, all we need to do is divide 84 by 12, which is 7.
So, the density is 7.
X/360 = 55/100
Cross multiply 55 by 360 and 100 by x.
19,800/100x.
X = 198.
198 people passed.
Depending on the scenario you would either shade everything in between these two points or it can be any real number/ point on the graph.
There isn't much info to go on how they visually want to see it.
Like you could easily graph this as a number line and shade everything from 1 to 11.25 and put a solid dot on both sides.
We can express this as a ratio. 4 balls :8 caps.
Then simplify. 1 ball: 2 caps.
We have to make caps equal to 6, so multiply by 3. For consistency, we need to multiply the number of balls by 3 too.
3 balls: 6 caps.
So Malcolm needs 3 balls of wool.
