Y=-4 is one of your answers
Answer:
The tap drains approximately half the water from the tank in 15 minutes
The tank initially has 50 gallons of water
Step-by-step explanation:
<u>The tap drains approximately half the water from the tank in 15 minutes. </u><u>True.</u>
This is true because see that the point (15,25) lies on the graph of the line.
Which means after 15 minutes the amount of water left in the tank is 25 gallons and 25 is half of 50.
The tap drains exactly one gallon from the tank every minute. False
This is false because the slope of the graph is ![m=\frac{50-25}{0-15}=-\frac{5}{3}](https://tex.z-dn.net/?f=m%3D%5Cfrac%7B50-25%7D%7B0-15%7D%3D-%5Cfrac%7B5%7D%7B3%7D)
<u>The tank initially has 30 gallons of water. </u><u>False.</u>
The y-intercept is the initial gallons of water which is 50.
<u>The tank initially has 50 gallons of water. </u><u>True.</u>
The y-intercept is the initial gallons of water which is 50.
<u>The tank takes 50 minutes to drain completely. </u><u>False</u><u>.</u>
It is false because the x-intercept tells us the tank is drained completely and it is not 50 minutes but rather 30 minutes.
It would be in the top left corner
To answer this question, we just need to subtract the saved cloth from the requested cloth:
![\frac{5}{6} - \frac{5}{12}](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B6%7D%20-%20%5Cfrac%7B5%7D%7B12%7D%20)
Since the fractions don't have the same denominator, we have to find the least common denominator. Luckily, since 6 goes into 12 twice, we can convert
![\frac{5}{6}](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B6%7D%20)
into
![\frac{10}{12}](https://tex.z-dn.net/?f=%20%5Cfrac%7B10%7D%7B12%7D%20)
:
![\frac{5}{6}( \frac{2}{2}) - \frac{5}{12} = \frac{10}{12} - \frac{5}{12}](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B6%7D%28%20%5Cfrac%7B2%7D%7B2%7D%29%20-%20%5Cfrac%7B5%7D%7B12%7D%20%3D%20%5Cfrac%7B10%7D%7B12%7D%20-%20%5Cfrac%7B5%7D%7B12%7D)
Now that the fractions have a common denominator, we can subtract them:
![\frac{10}{12} - \frac{5}{12} = \frac{5}{12}](https://tex.z-dn.net/?f=%5Cfrac%7B10%7D%7B12%7D%20-%20%5Cfrac%7B5%7D%7B12%7D%20%3D%20%5Cfrac%7B5%7D%7B12%7D%20)
The difference between the requested cloth and the saved cloth is 5/12 of a foot, or 0.4166'.