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Pepsi [2]
3 years ago
12

the amount of water in a bathtube as it drains can be modeled by this equation with y representing the number of gallons of wate

r in the tub and x representing the time, in minutes, that the tube has been draining y=-7.3x+39.7 after how many minutes will the tub have 17.8 gallons of water remaining

Mathematics
1 answer:
koban [17]3 years ago
4 0
Since y is representing the number of gallons of water in the tub, we need to replace y with the number of gallons remaining in the tube to find the time. Fortunately, the problem is telling us  just that: 17.8 gallons. The only thing left is replacing that value in the equation, and solve for x to find the time:
17.8=-7.3x+39.7
7.3x=21.9
x= \frac{21.9}{7.3}
x=3

We can conclude that after 3 minutes <span>the tub will have 17.8 gallons of water remaining.</span>
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Area of triangle where A=50, b=31, c=18
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Use Heron's Formula:
s means semi-perimeter = (50 + 31 + 18) / 2 = 99 / 2 =
49.5
area = sq root [(s * (s-a) * (s-b) * (s-c)]
area = sq root [(49.5 * (s-a) * (s-b) * (s-c)]

This will NOT form a triangle.  The longest side (50) is greater than the sum of the other 2 sides.

Source:
http://www.1728.org/trianinq.htm

 


5 0
3 years ago
PLS HELP! I WILL GIVE SOOOOO MANY POINTTSSSS and a brainly!!!
Gnom [1K]

Answer:

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5 0
2 years ago
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II<br>3<br>Find 6 X 915. Show your work.​
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4 0
2 years ago
Urgent
Damm [24]

The result of our calculations about the rate and time are:

  • r=d/t
  • 200000m/hr
  • 200km/hr
  • km/hr

<h3>What is rate?</h3>

Rate can be regarded as the given object with respect to time.

falcon flies= 800,000 meters

t= 4 hours

We were given the  formula as (d = rt)

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We can make our calculations as:

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r=d/t

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part c:

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part d:

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Learn more about rate at:

brainly.com/question/8728504

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4 0
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The graph shows a probability distribution. What is P(1.5 ≤ X ≤ 3)? Enter your answer, as a decimal, in the box.
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</span>
5 0
2 years ago
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