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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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1. Manufacturing Process Incorporation plan to produce a new ergonomic chair. Before the company starts producing this chair the
Oduvanchick [21]

Answer:

1. cost per chair: $86.40

2. selling price per chair: $146.88

Step-by-step explanation:

1. The total cost per chair will be the sum of the cost of materials and the overhead cost (equipment, energy, labor, marketing). The cost of materials is ...

$500/(16 chairs) = $31.25/chair

So, the total cost is ...

cost of each chair = material cost + overhead cost

= $31.25 +55.15

cost of each chair = $86.40

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2. We assume the markup is 70% of the cost, so will be ...

0.70 · $86.40 = $60.48

Then the selling price of the chair will be ...

selling price = cost + markup

selling price = $86.40 +60.48

selling price = $146.88

3 0
3 years ago
Each square below represents one whole<br> What percent is represented by the shaded area?
Goryan [66]

Step-by-step explanation:

Both squares are 50% = 100% in total.

1 square= 50%

1/2 of a square= 25%

50+25= 75% I think i'm pretty sure that's the answer.

8 0
3 years ago
Read 2 more answers
The probability of rain =0.2, sun=0.3,cloud=0.5. What is the probability of rain and sun over a two day period?
svp [43]

Answer:

0.2752512

Step-by-step explanation:

The formula you are looking for is the binomial probability:

               

                n!

P (X) = ------------    * (P)^X  * (q)^n - X

           (n- X)! X!    

For your particular problem:

n=7

X=2

 

q = 1-p = .8

7!/(5!*2!)*(.2)^2*(.8)^5 = 0.2752512

Hope this helps, have a nice day/night! :D

6 0
2 years ago
I need help with my math
Nat2105 [25]

Answer:

Part A. C=9

Part B. (w+3)² =139

Part C. w = 8.8 inch

Step-by-step explanation:

Given from the question length of the the picture = (2w+12) inches

Width of the picture = w inches

Area of the picture = 260 inch²

Part A. Area of the picture with the given dimensions= w×(2w+12)

Or w(2w+12) = 260

2w²+12w = 260

2(w²+6w) = 2×(130)

w²+6w = 130

Or w²+6w +9 = 130+9 ⇒ which is in the form of w²+6w+c = 130+c

Therefore for c = 9 we will get a perfect square trinomial.

Part B. As we have seen the equation in part A.

As required equation will be (w+3)²=139

Part C. Since (w+3)² = 139

Then by taking under root on both the sides of the equation

(w+3) =√139 = 11.8

(w+3)-3=11.8-3

w = 8.8 inch

3 0
3 years ago
Marty collects colorful paper clips. Each week he is sure to add exactly five new paper clips to his collection. Make a table re
ruslelena [56]

Answer:

all of them

Step-by-step explanation:

7 0
3 years ago
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