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Anton [14]
3 years ago
10

A bathtub is draining at a constant rate. After 2 minutes, it holds 30 gallons of water. Three minutes later, it holds 15 gallon

s of water. Write an equation that represents the number y of gallons of water in the tub after x minutes.
Mathematics
1 answer:
Ivahew [28]3 years ago
3 0

Answer:

60-15y=x

Step-by-step explanation:

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A circle is inscribed in an equilateral triangle. A point in the figure is selected at random. Find the probability that the poi
liubo4ka [24]

Answer:

The correct answer is first option 60%

Step-by-step explanation:

The radius of a circle is inscribed in an equilateral triangle with side a = a/2√3

<u>To find the area of equilateral triangle</u>

Here side be 'a'

Area of equilateral = √3a²/4

<u>To find the area of circle</u>

Here radius = a/2√3

Area = πr²

 = π(a/2√3)

 = 3.14a²/12

<u>To find the probability</u>

probability = area of circle/area of triangle

   = 3.14a²/12/ √3a²/4

   = 3.14/3√3

   = 0.6043 ≈ 60.43 %  60 %

The correct answer is first option 60%

 

8 0
3 years ago
Juan owes his cousin, Benito, $10.00. Benito is tired of waiting for Juan to pay him back. To try and get Juan to pay up more qu
AleksAgata [21]

Answer:

Equation: 10+x= 15 +0.5x

Time: 10 days

Amount: 20$

Step-by-step explanation:

<u>Equation for Benito:</u>

  • 10 + x*1

<u>Equation for Tavon:</u>

  • 15 + x*0.5

<u>Since the sums equalize at some time, we get:</u>

  • 10+x= 15 +0.5x
  • x - 05x = 15- 10
  • 0.5x = 5
  • x= 5/0.5
  • x= 10 days

After 10 days, Juan will owe both Benito and Tavon $20

7 0
3 years ago
Todd is saving for a vacation. The cost of his vacation is 1,089. Todd has a year to save the money. About how much does he need
Rashid [163]
Todd needs to save $90.75 per month to reach his goal
4 0
3 years ago
Read 2 more answers
Convert the polar expression of this complex number into its rectangular form:
Sergio [31]

Answer:MARK BRAINLLEST MARK BRAINLLEST

(−5/2, 5/2√3)

<h2 />

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Write an equation of the line passing through point P(−8, 0) that is perpendicular to the line 3x−5y = 6.
denpristay [2]

Answer:

y = -5/3 * x - 40/3

Step-by-step explanation:

A perpendicular line has an opposite and a reciprocal of the slope.

Your equation should be:

-5y = -3x +6

Divide all parts by -5.

y = 3/5x - 6/5

Since the perpendicular line has an opposite and a reciprocal of the slope, the slope will be -5/3.

Now you must make an equation in point-slope form. This is an example of that form. You will need at least one point to make this equation work. In this case we have (-8,0).

In put the y and x coordinates like this:

y - 0 = -5/3(x - (-8)

Start solving the equation.

y - 0 = -5/3(x + 8)

y - 0 = -5/3 * x - 40/3

y = -5/3 * x - 40/3

This is your equation.

y = -5/3 * x - 40/3

(You can make it -5/3x in your answer but it looks weird online. You may think that it is -5 divided by 3 times x, but it actually is 5/3 times x. That's why I wrote it as y = -5/3 * x - 40/3)

8 0
3 years ago
Read 2 more answers
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