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Vesna [10]
3 years ago
6

Two pools are leaking, after 15 minutes pool A has leaked 2/3 gallon, after 20 minutes pool B has leaked 2/3 gallon. Which pool

is leaking water the fastest and by how much?
*20 points* please answee quick!
Mathematics
1 answer:
shepuryov [24]3 years ago
6 0

Answer:

Pool A.

Step-by-step explanation:

This can be solved through ratios. You would write it as \frac{gallons}{minutes} So, \frac{2/3}{15} for the first one, and \frac{2/3}{20} for the second. You might want to use a calculator for that part, but you could also change the gallons to cups, which gives you a much better number of 10.515. So, \frac{10.515}{15} = 0.701, and \frac{10.515}{20} = 0.52575 So, pool A is at a faster rate. If you want it in gallons per minute, it's by 0.01 (with the 1 repeating) gallons per minute. By cups, it's 0.17525 cups per minute.

(The reason I did not do this by cross multiplying and dividing ratios is because it gives you the exact same answer if you are finding it per one, as I am here with per one minute. You can do it this way, it just wastes a bit of time.)

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Which is the highest: 2.1 yards 72 inches 5ft 11 inches or 74 inches
Llana [10]

Answer:

75.6 in or 2.1 yds

Step-by-step explanation:

Hi!

2.1 yds=75.6 in

72 in=72 in

5'11=71 in

74 in=74 in

75.6 in or 2.1 yds is the greatest.

Hope this helped, have a great day! <3

4 0
3 years ago
Which would be the best method to use to solve the following equation. Explain your reasoning.
lozanna [386]

Answer:

x = ±8

Step-by-step explanation:

The given equation is :

3x^2-192=0

We can use the Square root Property to solve it.

Adding 192 both sides,

3x^2-192=0\\\\3x^2=192

Dividing both sides by 3.

x^2=64\\\\x=\sqrt{64} \\\\x=\pm 8

So, the value of x is equal to +8 and -8.

5 0
3 years ago
Please ANswer ASAP &amp; show all work. If you put an incomplete or absurd answer I WILL report you.
bogdanovich [222]

Answer:

  • 1 ft²

Step-by-step explanation:

The scale factor = 1 : 20

<u>The area is the product of two dimensions, so the area of the model part to actual part is:</u>

  • 1 ² : 20 ² =
  • 1 : 400

<u>If the actual plane has wing area of 400 ft², then the model will have wing area:</u>

  • 400 ft² / 400 = 1 ft²
7 0
3 years ago
Which expression is equivalent to 3(6m)+m<br> 3<br> 6<br> m<br> +<br> m<br> ?
svetlana [45]

Answer:

some Equivalent expressions to 3(6m)+m is;

18m+m

6(3m)+m

2(9m)+m

19m

Step-by-step explanation:

6 0
3 years ago
If the discriminant is negative then the quadratic has
zepelin [54]

Answer:

No <em>real</em> solutions (or has two complex roots)

Step-by-step explanation:

The discriminant, <em>b</em>² - 4<em>ac</em>, is the expression (<u><em>radicand </em></u>) of the quadratic equation:

x = \frac{-b +/- \sqrt{b^{2}-4ac} }{2a}.

The value of the discriminant determines the <u>nature</u> and the <u>number of solutions</u> given by the quadratic equation.

A discriminant with a negative value (or b² - 4ac < 0 ) means that the quadratic equation has no real solutions or two complex solutions. Quadratic equations with a negative discriminant also have no x-intercepts; thus, its graph will not cross the x-axis.  

4 0
2 years ago
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