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PtichkaEL [24]
2 years ago
5

A large rectangular shaped aquarium has a volume of 300 ft3. If the aquarium has a height of 3 feet and a length of four more fe

et than the width, find the length and width of the aquarium.​
Mathematics
1 answer:
KIM [24]2 years ago
3 0

Answer:

length is 14.4ft and the width is 12.4ft

Step-by-step explanation:

Volume of the aquarium = length * width * height

Given

Volume = 300ft^3

Height = 3feet

l = w+4

Substitute

300 = 3w(w+4)

100 = w(w+4)

100 = w^2+4w

w^2+4w-100 = 0

w = 4±√16+400/2

w =4±√416/2

w = 4±20.4/2

w = 24.4/2

w = 12.2feet

Since l = w+4

l = 12.2+4

l = 16.4ft

hence the length is 14.4ft and the width is 12.4ft

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kompoz [17]
14 - 2.2 =11.8
he needs to drive 11.8 more miles.

hope this helps you
6 0
3 years ago
Suppose your current electricity meter reading is 25,789 kWh, and the reading on your last bill was 25,350 kWh. If you are charg
Brrunno [24]

The amount of bill is $43.15

Step-by-step explanation:

Given,

Current meter reading = 25,789 kWh

Reading on last bill = 25,350 kWh

Reading for the month = Current meter reading - Last month bill reading

Reading for the month = 25789 - 25350 = 439kWh

Cost per kWh = $0.0983

Cost of 439 kWh = 0.0983*439 = $43.1537

Rounding off to nearest hundredth

Cost of 439 kWh = $43.15

The amount of bill is $43.15

Keywords: subtraction, multiplication

Learn more about subtraction at:

  • brainly.com/question/11175936
  • brainly.com/question/11203617

#LearnwithBrainly

8 0
2 years ago
A roofing job take 6 workers 8 hours to complete. If the number of workers is inversely proportional to the time a job takes to
Wewaii [24]

its a long time before finishing

7 0
3 years ago
The value of a $120,000 house increases by 1.3% per year.
Nitella [24]

Answer:

a. exponential growth

Step-by-step explanation:

the equation is y = 120000(1.03)^x

f(x)=a(1+r)^{x}

5 0
2 years ago
What is the x coordinate of the solution of the system? 2x+y=15 and x-y=3
Varvara68 [4.7K]

x - y = 3

x = 3 + y

x -3 = y

y = x-3

put it in 1st equation

2x +y = 15

2x + x - 3 = 15

3x - 3 = 15

3x = 15+3 = 18

x = 18/3 = 6

x = 6

6 0
3 years ago
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