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
denis-greek [22]
3 years ago
7

The mass of a block of stone is 6400 kg. If the block has a volume of 0.8 m cubed, what is its density? Remember, density is mas

s per unit of volume.
Please help ... due in less than 12 hours.
Mathematics
1 answer:
vovangra [49]3 years ago
7 0
The question is asking for mass/unit of volume. 
Therefore the density of the material would be 6400kg/0.8m^3. You then want to change the bottom into a 1 by multiplying the top and bottom both by 10/8. You now have 8000kg/m^3, which is the solution. 

8000  \frac{kg}{m^3}
You might be interested in
Combine like terms to simplify the following expression: 12x + 4y – 3x + 2 – 8y2 + 32
sesenic [268]

Answer: The answer is 9x-8y²+4y+34

Step-by-step explanation: Since the equation is 12x+4y-3x+2-8y^2 + 32

1.  combine like terms so- combine 12x-3x= 89x

2. look for other like terms- 2+32= 34

3. since 8y^2 and 4y are not the same you can combine them

4. put them all together- 9x-8y^2+4y+3

That's you answer. Hope this helped

6 0
3 years ago
Read 2 more answers
In an axiomatic system which category do points, lines and planes belong to
tekilochka [14]
Points, lines, and planes belong in to the axiomatic system of undefined terms. So undefined terms would be your answer.
4 0
3 years ago
Read 2 more answers
a rectangle plot measure 20ft. by 30ft. A 3-ft.-wide sidewalk surrounds it.Find the area of the sidewalk.
goldenfox [79]
Area of a rectangle = length (l) * width (w)
A = 30ft * 20ft
A = 600 sq ft

Now the width of a sidewalk that surroundeds it = 3 ft
so now the area of the rectangle with sidewalk= 30+3ft * 20+3ft
A = (33*23) ft
A = 759 sg ft

Area of the sidewalk = 759 - 600
A = 159 sq ft
3 0
3 years ago
joel is laying pipe for a sprinkler system before he plants his lawn . the lawn is a rectangle, 15 feet long and 8 feet wide. he
Nadya [2.5K]

Answer:

The length of the pipe = 17 feet

Step-by-step explanation:

length = 15 feet

width = 8 feet

Pythagorean theorem,

(diagonal)² = (length)² +(width)²            {all angles of rectangle are 90°}

                   = 15² + 8²

                   = 225 + 64  = 289

diagonal    = √289 = √ 17 * 17

                   = 17 feet

7 0
3 years ago
Help cant do it? It's trigonometry
12345 [234]

I think the answer to your problem is 69

6 0
3 years ago
Other questions:
  • What I the answer to this question question
    10·2 answers
  • What is the slope of 2x+3y=18
    15·2 answers
  • Find the coordinates of the other endpoint of a segment with endpoint X(-2,3) and midpoint (1,-2)
    6·1 answer
  • What would be the least common denominator for the sum of 3/5+4/10
    14·1 answer
  • PLASE HELP ASPAP
    7·2 answers
  • Nvm i already posted it
    14·2 answers
  • Tamisha's shampoo bottle holds 1/2 bottle of shampoo.She used 5/6 of the bottle.How many gallons of shampoo has Tamisha used?
    13·1 answer
  • HELP ILL GIVE YOU BRAINLIEST
    11·1 answer
  • How many rectangles, of any size are in the figure?
    5·1 answer
  • I walked 280m of the road from the park to the station. This is equivalent to 9/10 of the total distance. How many meters is the
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!