1answer.
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
AlladinOne [14]
3 years ago
12

At the Science Museum, there is an exhibition with 150 displays about energy.

Mathematics
1 answer:
tatuchka [14]3 years ago
8 0
<span>1/5
       
This is a matter of elimination. So let's figure out how many of each display there is. 30% of 150 = 0.30 * 150 = 45 displays about electricity. 2/5 * 150 = 0.40 * 150 = 60 displays about renewable energy 1/10 * 150 = 150/10 = 15 displays about gas. The rest of the displays are about nuclear power. So 150 - 45 - 60 - 15 = 30 displays about nuclear power. Since we want a fraction, we get 30/150 But 30/150 isn't in it's simplest form. The largest number that will evenly divide both 30 and 150 is 30. So divide both the numerator and denominator by 30 (30/30)/(150/30) = 1/5 So 1/5 of the displays are about nuclear power.</span>
You might be interested in
I need help I have searched everywhere and nothing
Marta_Voda [28]

Answer:

See attached

Step-by-step explanation:

<em>All answers in one graph, refer to attached</em>

<u>The function we need is</u>

  • C(x) = 100(2*5280 - x) + 180\sqrt{800 +x^2}, where 2*5280= 2 miles

Table included as well

The vertex is about x = 19 ft which corresponds the minimum cost

Any other value, including negative reveal greater cost

  • <u><em>Note. there is a bit confusion over 2 miles or 2000 ft, but the graph is going to be same in shape and vertex for x, the value for cost will be different</em></u>

3 0
3 years ago
Which expression is equivalent to (8^2)-4 ??
Tamiku [17]

Answer:

Option C \frac{1}{8*8*8*8*8*8*8*8}

Step-by-step explanation:

we have

(8^{2})^{-4}

Remember that

(a)^{-b} = \frac{1}{a^{b}}

(a^{b})^{c}=(a)^{b*c}

therefore

(8^{2})^{-4}=(8)^{-4*2}=(8)^{-8}

(8)^{-8} = \frac{1}{8^{8}}

\frac{1}{8^{8}}=\frac{1}{8*8*8*8*8*8*8*8}

3 0
2 years ago
Read 2 more answers
Which fraction represents the solution to -6/5/(-3/25) in simplest form?
Tresset [83]
To divide fractions, you flip the denominator and then multiply it by the numerator.

-6 / 5 x (-25 / 3)

Multiply straight across; the negative cancels out.

150 / 15

This can be reduced to 15, which is its simplest form.
7 0
3 years ago
Read 2 more answers
Answers for all questions
abruzzese [7]

Answer:

3 and dived 30 multy is 182 is your answer

Step-by-step explanation:

1+1=2

8 0
3 years ago
Help quickly please!!!
vagabundo [1.1K]

Answer:

1/3 B h

1/3(50.24)(10)

plug in into a calculator

6 0
3 years ago
Other questions:
  • PLZZ HELP ASAP!!!!!!!!!!!
    11·2 answers
  • What are the values for the coefficients and constant term of 0 = 2 + 3x2 – 5x?
    5·2 answers
  • Which graph passes through the point (-5,-6) and has a slope of 2/3 (two over three)
    14·1 answer
  • Gary found 72 shells and 40 coins at the beach. He wants to give them to some of his friends. Each friend will receive the same
    6·1 answer
  • Can someone plz help me with this
    11·2 answers
  • There is a bag filled with 4 blue and 5 red marbles. A marble is taken at random from the bag, the colour is noted and then it i
    9·1 answer
  • Please please help me I’m on a quiz
    13·1 answer
  • » Jonah rides the train and the ferry to visit his uncle. The train ticket costs $45. The train ticket costs 5 times as much as
    10·2 answers
  • Guys comment me plsssssssss.​
    6·2 answers
  • The diagram shows the cross-section of a wall of a cinema.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!