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
slava [35]
3 years ago
8

I don't know this please help give brainlest

Mathematics
2 answers:
IgorC [24]3 years ago
8 0

Answer:

<h2><em><u>-20</u></em><em><u> </u></em><em><u>+</u></em><em><u> </u></em><em><u>3m</u></em><em><u> </u></em><em><u>+</u></em><em><u> </u></em><em><u>6k</u></em></h2>

Step-by-step explanation:

<em><u>Given</u></em><em><u>, </u></em>

Sides of the triangle = (5k-7) cm, (k-4) cm and (3m - 9) cm

<em><u>Therefore</u></em><em><u>, </u></em>

Perimeter of the triangle in cm = (5k -7) cm + (k-4) cm + (3m - 9) cm

= 5k - 7 + k - 4 + 3m - 9

= 5k + k -7 - 4 - 9 + 3m

= 6k -20 + 3m

= - 20 + 3m + 6k

<em><u>Hence</u></em><em><u>,</u></em>

<em><u>-20</u></em><em><u> </u></em><em><u>+</u></em><em><u> </u></em><em><u>3m</u></em><em><u> </u></em><em><u>+</u></em><em><u> </u></em><em><u>6k</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>perimeter</u></em><em><u> </u></em><em><u>of</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>triangle</u></em><em><u> </u></em><em><u>in</u></em><em><u> </u></em><em><u>cm</u></em><em><u>.</u></em>

BigorU [14]3 years ago
5 0

Answer:

-20+3m+6k

Is the required answer.

You might be interested in
What is the side length of a square with a perimeter of 60 meters
konstantin123 [22]

Answer:

15 meters each side

Step-by-step explanation:

60/4 = 15

7 0
3 years ago
Brianne's town is building a pool based on a scale drawing that is 20 centimeters by 10 centimeters and uses the scale 1 cm:250
kiruha [24]

Answer:

A=1250m^2

Step-by-step explanation:

From the question we are told that

Dimension of drawing

20 centimetres by 10 centimetres

Scale of drawing

1 cm:250 cm

Generally the the Main dimension of the pool is mathematically given as

L=length\ of\ scaled\ pool*250 cm\\B=length\ of\ scaled\ pool*250 cm\\L=20*250=5000 cm=50m\\B=10*250=2500 cm=25m

Therefore Area Aof main pool is mathematically given as

A=50m*25m=1250 m^2

A=1250m^2

4 0
3 years ago
True or false 2 quarts is &gt; 10 pints
Firdavs [7]
1quart=2pints
convert 2 points to quarts
2 quarts=2 times 2 pints=4 pints

now we have
4pints>10pints
false since 4>10

FALSE

3 0
3 years ago
Tell which of the diagram is a function or not.
Basile [38]

Answer:

The answer to your question is below

Step-by-step explanation:

1.-

a) It's a function

b) It is not a function

c) it's a function

d) it's a function

2.-

a) It's a one to one function

b) it's not a one to one function

c) it's a one to one function

d) it's a one to one function

8 0
3 years ago
Write an expression for 4 snacks at n pence each
lozanna [386]
<span>The expression for the total price paid for all snacks (P pence)= 4n Pence will be; P=4n. Calculation: let the total price for the four snacks be P pence. let the four snacks be s1,s2,s3, and s4; their prices are: s1=n pence; s2= n pence; s3=n pence; s4= n pence. therefore; the total price paid for all snacks (P pence)= s1 price +s2 price +s3 price +s4 price = n+n+n+n= 4n hence; P=4n i.e. the total price paid for all snacks (P pence)= 4n Pence</span>
5 0
3 years ago
Other questions:
  • Show me a order line 3/10,0.5 ,1/5 greater to the least
    8·1 answer
  • 3-4 what is the answer I am dumb plz helq
    7·2 answers
  • Math question plz give answer with explanation will report if it is a non-sense answer. I just want to make sure I am doing it r
    10·1 answer
  • PLEASE HELP, ITS TIMED SO HURRY PLEASE&gt;&gt;&gt;&gt;&gt;&gt;&gt;
    10·2 answers
  • $750 loan 7% a year three years of no payments how much interest are you paying?
    9·1 answer
  • Math To Do, Ready
    9·1 answer
  • Eva has a points card for a movie theater. She receives 65 rewards points just for signing up. She earns 13.5 points for each vi
    8·1 answer
  • D square=3h+s<br>change of subject formula<br>make h the leader<br>​
    6·1 answer
  • Math problem I need help please it will be great if you help btw don't take this question down its is a school question
    13·1 answer
  • Rafi had a board that was 15 1/2 feet long. He cut three pieces off the board that are each 3 7/8 feet long. How much of the boa
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!