My answer to the problem is as follows:
Expressed as an absolute value.
<span>
The difference between the actual length, x, and the specification, 43.6, can be no more than 0.1 </span>
<span>
|x - 43.6| ≤ 0.1 <–––––
</span>
<span>The 43.6 is the target length, and the tolerance of 0.1 is how far off from the target is acceptable.</span>
so basically it is the same because you find the scale factor which is
12/8 =1.5
and 18/12 =1.5
which means it is the same
Such as 1/2 ÷ 1/4, we flip the second fraction and then we simply multiply the numerators with each other and the denominator with each other then we get the answer 2
X = amount of fluid ounces
so, if Liza can fill it up in 45 seconds, that means that in 1 seconds she has done (1/45)x fluid ounces.
now the hole can drain it in 60 seconds or a minute, that means that in 1 second, the hole has drained (1/60)x fluid ounces.
now, if we just subtract Liza's rate from the Hole's, what's leftover is that rate at which the bucket is being filled up.
that means the bucket is filling up at (1/180)x fluid ounces per second, in order to get a "whole", that be 180/180, so namely if it's doing 1/180 in 1 second, it'll take 180 seconds to do the
whole bucket, or 3 minutes.
The answer is B, because the x-axis is the domain, and the max for the domain in 240, so it would have to be less than or equal to 240, but greater than or equal to 0.