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Dafna1 [17]
3 years ago
12

Write an equation that can be used to find h, the number of hours it will take to fill the pool from its current level. Explain

the steps you used to write your equation
Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
8 0

The question is incomplete. Here is the complete question.

When full, one of the pools of Sapphire Island will hold 43,000 gallons of water. The pool currently holds 20,000 gallons of water and it is being filled at a rate of 130 gallons per minute. Write an equation that can be used to find h, the number of hours it will take to fill the pool from its current level. Explain the steps you used to write your equation.

Answer and Step-by-step explanation: The total capacity of the pool is 43,000 gallons. Initially, it has 20,000 gallons.

The rate is 130 gallons per minute and since it wants in hours:

1 minute = \frac{1}{60} hours

then:

rate = 130 ÷ \frac{1}{60}

rate = 130*60

Equation for the number of hours to fill the pool:

20,000 + 130*60(h) = 43,000

20,000 + 7800h = 43,000

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s2008m [1.1K]

Answer:

Step-by-step explanation:

1.

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Equation three:

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Equation four:

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2.

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4 0
1 year ago
In the equation x+12=30 does x=16 explain your answer
denpristay [2]
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4 0
2 years ago
Question 10 (7 points) d Elizabeth borrowed $20,000 for five years at a 5% annual interest rate, what is her monthly payment, to
zhenek [66]

Answer:

monthly payment is $377

C is the correct option.

Step-by-step explanation:

The formula for the monthly payment is given by

C=\frac{Prt(1+r)^n}{(1+r)^n-1}

Given that,

P =  $20,000

n = 5 years = 60 months

r = 0.05

Substituting these values in the formula

C=\frac{20000\cdot \frac{0.05}{12}(1+\frac{0.05}{12})^{60}}{(1+\frac{0.05}{12})^{60}-1}

On simplifying, we get

C=\$377.425\\\\C\approx \$377

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4 0
2 years ago
Each day, the human heart pumps about 7500 liters of blood. As a simple approximation, assume that the work done by the heart is
erik [133]

Answer with Step-by-step explanation:

We are given

Volume of blood=V=7500 L=7500\times 0.001=7.5 m^3

1 liter=0.001 m^3

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We have to find the work done and power of person's heart.

We know that

Work done,W=mgh=\rho Vgh

Where g=9.8 m/s^2

Using the formula

W=1050\times 7.5\times 9.8\times 1.5=1.16\times 10^5 J

Time,t=1 day=24\times 60\times 60=86400 s

Power, P=\frac{W}{t}

Using the formula

P=\frac{1.16\times 10^5}{86400}=1.34 Watt

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3 years ago
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