answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Pachacha [2.7K]
1 year ago
9

An aquarium with a square base has no top. There is a metal frame. Glass costs 5 dollars/m2 and the frame costs 2 dollars/m. The

volume is to be 20 m3. Express the total cost ???? in terms of the height ℎ in meters. (Hint: work out the cost of the glass and frame separately.)
Mathematics
1 answer:
adell [148]1 year ago
3 0

Answer:

C = 420/h + 400

Step-by-step explanation:

Let s be the side of the square base.

Let h be the height

Volume = s*h

20 = s*h

s = 20/h

Cost of glass is

5(20/h) + 5(4* h*20/h)

= 100/h + 400

Cost of frame is

2*4(20/h) + 2*4(20/h)

= 160/h + 160/h

= 320/h

Total cost = C

C = cost of glass + cost of frame

C = 100/h + 400 + 320/h

C = 420/h + 400

You might be interested in
There are approximately 0.4536 kilograms in a pound. To the nearest whole pound, how many pounds does a steer that weighs 200 kg
Sergio039 [100]

Answer:

i need help with this one too plz help

Step-by-step explanation:

5 0
1 year ago
There are 50 students in a class and the professor chooses 15 students at random. what is the probability that you or your frien
Alenkasestr [34]
Try this option (see the attachment). Make design according own requirements.
Note, that the description and details are under green line.

Answer: 0.030921

3 0
1 year ago
Read 2 more answers
Ms. Walker's class set up an online fund with a goal to raise $1,280 to go on a field trip. Ms. Walker starts the fund by deposi
madreJ [45]
What you can use for this case is a function of the potential type.
 We have then
 y = a (b) ^ x
 Where we have:
 Walker starts the fund by depositing $ 5
 a = 5
 Each week the balance of the fund is twice the balance of the previous week:
 b = 2
 The function is:
 y = 5 (2) ^ x
 The number of weeks to reach $ 1280 is 8 weeks.
 Check:
 y = 5 (2) ^ 8
 y = 1280
 Answer:
 An equation can be used to find the number of weeks, x, after which the balance of the fund will reach $ 1,280 is:
 y = 5 (2) ^ x
 The number of weeks that it takes to reach the class goal is
 8 weeks
4 0
2 years ago
Read 2 more answers
Sienna is solving the quadratic equation by completing the square. 3x2 + 9x – 4 = 0 3x2 + 9x = 4 A(x2 + 3x) = 4 What is the valu
bogdanovich [222]

Answer:

I am going to show you the first steps to complete squares for the given equation: 1) Starting equation: 3x^2 + 9x -4 = 0 2) Add 4 to both sides => 3x^2 + 9x - 4 + 4 = 4 => 3x^2 + 9x = 4 3) Extract common factor 3 in the left side => 3 (x^2 + 3x). Now, compare with a(x^2 + 3x) and you get a = 3. Answer: a = 3.

3 0
1 year ago
Read 2 more answers
Daisy works at an ice-cream parlor. She is paid $10 per hour for the first 8 hours she works in a day. For every extra hour she
andre [41]

Answer:

80+(15x)

Step-by-step explanation:

10 times 8=80

1.5 times 10=15

so she gets 80 dollars for the first 8 hours then for every extra hour she gets 15 dollars

7 0
2 years ago
Other questions:
  • PLEASE ANSWER! I WILL BRIANLIEST.
    9·1 answer
  • A gardener is planning to fill her garden with mulch. She plots it on a grid to plan how much she will need. The garden is in th
    11·1 answer
  • Points C and D divide the semicircle into three equal parts. Match the angles with their measures.
    15·2 answers
  • Historically, in the early to middle 1900’s, households that had a telephone in their home were considered to earn an above aver
    8·1 answer
  • Julie will build a rectangular pen for her dog against a barn. A wall from the barn will form one side of the pen. She has 32 m
    7·2 answers
  • The ratio of Dina's bathing suit to yana is 4:1, if Dina has 24 more bathing suits than yana, how many bathing suits does yana h
    9·1 answer
  • The power P of a jet of water is jointly proportional to the cross sectional area A and to the cube ofthe velocity V. (a) Write
    9·1 answer
  • The price index was 128 in 2013, and the inflation rate was 24 percent between 2012 and 2013. The price index in 2012 was Select
    6·1 answer
  • Tricia is going to write Patterns A, B, and C using the rule add 15. The first
    10·1 answer
  • In a class of 777, there are 333 students who have done their homework.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!