2/8 or 1/4. 1/4 is just simplified. I hope it helps!
Answer:
h = 
Step-by-step explanation:
Area (A) of a triangle =
× base (b) × height (h)
i.e A =
bh
h = 
Answer:
10 minutes
Step-by-step explanation:
Assuming men and minutes are interchangeable, 3 times as many men can be assumed to assemble the toys in 1/3 as much time.
21 men can make 21 toys in 30/3 = 10 minutes.
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<em>Additional comment</em>
We have to assume there are no rate-limiting steps in the process. This assumption is not always valid.
Alright, so we can write this as -3x^2+px-24=0 (by subtracting 24 from both sides)
3*-24=-72, so 2 numbers have to add to 72 but multiply to a number p. If a number is y and the other is 2y, that means that y*2y=-72 and 2y^2=72. Therefore, y^2=36 by dividing both sides by 2 and y is either 6 or -6. If y is 6, then 2y is 12 and 6+12=18=p
If y is -6, then 2y=-12 and -6-12=-18=p