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
blsea [12.9K]
2 years ago
10

Convert into metre 81Km 30 m​

Mathematics
1 answer:
aliya0001 [1]2 years ago
5 0

Answer:81030m

Step-by-step explanation:1km=1000m, 81km=81000+30=81030m

You might be interested in
Divide (x^2+9x+19)÷(x+5)
gayaneshka [121]
Since this can’t be factored easily, you have to use synthetic division. This makes the answer x+4+(-1/x+5)

6 0
3 years ago
What is the centimeters?
S_A_V [24]
The answer is 11.6 centimeters.
3 0
2 years ago
HELP me please! Please I really need it!
Crank

Answer:

The radius is 6.1 cm

Step-by-step explanation:

The volume of a sphere is

V = 4/3 pi r^3

There is a typo in the problem.

We know the volume

950 = 4/3 (3.14) r^3

Multiply each side by 3/4

3/4 *950 = 3.14 r^3

712.5 = 3.14 r^3

Divide each side by 3.14

712.5/3.14 = r^3

226.910828 = r^3

Take the cube root of each side

226.910828 ^ (1/3) = r^3 ^ 1/3

6.099371323 = r

The radius is 6.1 cm

4 0
3 years ago
A triangle has a perimeter of 90 centimeters write and use a linear system
lawyer [7]

We are given sides of the triangle by expression

First side : n

Second side : m = 5n-5.

Third side : l = 5/4 m - n.

Perimeter is 90.

Therefore, first equation could be set :

n +m +l = 90   --------------equation(1)

Second equation would be

m = 5n-5        --------------equation(2)

Third equation would be

l = 5/4 m - n   --------------equation(3)

Let us solve the system of equations by substitution.

Substituting m = 5n-5 and l = 5/4 m - n in first equation.

We get

n +5n-5 +5/4 m - n= 90

Now, substituting m = 5n-5 in above equation we get

n +5n-5 +5/4 (5n-5) - n= 90

5n + 25n/4 -5 - 25/4 =90

5n + 6.25n -5-6.25 = 90.

11.25n-11.25 = 90

Adding 11.25 on both sides, we get

11.25n-11.25+11.25 = 90+11.25

11.25n = 101.25.

Dividing both sides by 11.25, we get

n=9.

Plugging n=9 in 2nd equation.

m = 5(9)-5 = 45 -5 = 40.

Plugging n=9 and m=40 in first equation, we get

9 +40 +l = 90

49 +l = 90.

Subtracting 49 from both sides, we get

49-49 +l = 90-49

l = 41.

Therefore, sides are of lengths l = 41, m= 40 and n=9.


5 0
3 years ago
What is the rate of change of the function?
scoundrel [369]

Answer:

rate of change = 3

Step-by-step explanation:

to find the rate of change \frac{y1 - y2}{x1 - x2}

(0,-4) (1,-1)

\frac{-4+1}{0-1} = \frac{-3}{-1} = 3

7 0
2 years ago
Read 2 more answers
Other questions:
  • WILL MARK BRAINLIEST Find the coordinates of the points of intersection of the graphs with coordinate axes: c y=− 1/4 x+2
    13·1 answer
  • A relative frequency table is made from data in a frequency table. Relative Frequency Table: A 4-column table with 3 rows. The f
    13·2 answers
  • What is 1/2 divided by what 1/6
    14·2 answers
  • Wat is 160656 rounded to the nearest hundred thousand
    12·2 answers
  • If B is the midpoint of AC and AC=8x-20 find BC
    8·2 answers
  • If he rows with the current, Mishka rows 48 km in 3 hours. If he rows against the current, it takes 4 hours to travel the same d
    11·1 answer
  • How much material is needed to make a triangular flag with base 2 1/4 and height 8 1/2
    13·1 answer
  • On the last 4 math assignments, Andrew scored the following:
    6·2 answers
  • Identify ON.<br> Need help ASAP! I’m so confused
    15·1 answer
  • There are multiple parts to this question. I need help with them.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!