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
Annette [7]
3 years ago
9

A cube has side length a. The side lengths are decreased to 20% of their original size. Write an expression in simplest form for

the volume of the new cube in terms of a.
Mathematics
1 answer:
shutvik [7]3 years ago
3 0
<span>side lengths are decreased to 20% of their original size - it means that the new side is 80% of a. Let's call it side b.
b=.8a
V = (.8a)^3 = .512a^3 </span>
You might be interested in
The length of each side of a square increases by 2.5 inches to form a new square with a perimeter of 70 inches. The length of ea
Lunna [17]

Answer:

15 inches

Step-by-step explanation:

let n = side length

(n + 2.5) x 4 = 70

4n + 10 = 70

4n = 60

n = 15

6 0
3 years ago
-17/30 write a fraction as a decimal
Whitepunk [10]
As a decimal the answer would be −0.566666666666667
7 0
3 years ago
A bag contains 2 red, 4 blue, and 4 yellow marbles. What is the probability of pulling a red marble, putting the marble back, an
sdas [7]

Answer:

B.) 8%

Step-by-step explanation:

Answer: B.) 8%

8 0
4 years ago
Explain how to write the equation of a vertical line
valentina_108 [34]

Answer:

Look below

Step-by-step explanation:

A vertical line doesn't intercept the y-axis, therefore the equation would be x=b in which b is where the line intercepts the x-axis.

6 0
3 years ago
Read 2 more answers
The diameter of a wheel of a lorry is 150cm. If the lorry travels 376.8m, how many times does the wheel rotate?
tresset_1 [31]
<h3>Answer:  79 full rotations</h3>

====================================================

Explanation:

150 cm = 150/100 = 1.5 m

The wheel has a diameter of 1.5 meters

The circumference of the wheel is

C = pi*d

C = pi*1.5

C = 1.5pi

C = 4.71238898038469

I'm using my calculator's stored version of pi to get the most accuracy.

Then we divide the 376.8 over the circumference found

(376.8)/(4.71238898038469) = 79.9594434093682

Despite being very close to 80, we must round down to 79 because we don't have enough to get that full 80th rotation. In other words, we have 79 full rotations and then some change leftover.

Though for the sake of simplicity, I can see how it's useful to say "about 80 rotations" if 79 seems a bit clunky. I'll stick with 79 however. Let me know if your teacher instructs otherwise.

4 0
2 years ago
Other questions:
  • A sweater was on sale at %40 off the regular price. Ella saved $20 by buying the sweater on sale. What was the regular price of
    14·2 answers
  • Two black chips and three red chips are put into a bag. Two points are awarded for each black chip drawn, and one point is lost
    10·2 answers
  • Anyone know this ???
    11·1 answer
  • 3x - 5y+5=0<br>4x+ 7y+8=0<br><br>Please help ​
    10·1 answer
  • Solve 2(3∕4z + 2) = 2(1∕8z – 1∕2) for z.
    12·1 answer
  • Please hurry it’s urgent
    9·2 answers
  • Solve (y/-6)+5=9<br> Help please!! Very stuck.
    10·1 answer
  • Hey can you please help me posted picture of question :)
    5·2 answers
  • Find the value of x in the diagram
    13·1 answer
  • Match each expression to its equivalent expression.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!