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.
Problem 1
Plot 3 or 4 of the given points. For example, plot (4,16) and one other point given in the table. Draw a straight line through your points. Look carefully: Where does your line cross the y-axis? If y = 14 (just an example, not the correct value), then the y-intercept is (0,14).
To find the slope of your line, choose any 2 of the given 4 points. Find the slope of the line segment connecting those 2 points. For example:
24 - 16 8
m = ------------- = -------- = 2. The slope of this line is m=2.
8 - 4 4
Now you have both the slope (2) and the y-intercept (b). The equation of this line is thus
y = 2x + b (you found b earlier).
Quotient: The answer to a division problem
Answer:
Gavin
Step-by-step explanation:
Gavin: 3600 words / 60 minutes = 60 wpm
Dan: 3850 words / 70 minutes = 55 wpm
Colin: 3500 words / 70 minutes = 50 wpm
Assuming you are asking how many weeks, than the answer would be 17-32, because at 16 weeks the growth would be 4 cm, totaling at 11, but you need more than 11cm, and at 32 weeks it's at 15 cm.
