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
DedPeter [7]
3 years ago
5

The sides of a triangle are in the ratio 3:4:5. What is the length of each side if the perimeter of the triangle is 30 cm

Mathematics
1 answer:
horsena [70]3 years ago
7 0
One way:

3x + 4x + 5 x = 30
12 x = 30
Divide by 12
x = 2.5

3x = 7.5   (2.5x3)
4x = 10     (2.5x4)
5x = 12.5   (2.5x5)

7.5cm + 10cm +12.5cm = 30cm  There are your three sides.   
You might be interested in
There are 300 runners at the meet, some boys and some girls
Ira Lisetskai [31]

Answer:

you need to tell me the question first!

Step-by-step explanation:

6 0
2 years ago
If <br> A)8/17<br> B)8/15<br> C)15/17<br> D)15/8
aalyn [17]

<em>Answer:</em>

<em>d) 15/8</em>

<em>Step-by-step explanation:</em>

<em>tgB =  AC/AB = 15/8</em>

<em>The tangent of an angle is the length of the opposite side (AC) divided by the length of the adjacent side (AB).</em>

4 0
3 years ago
Helppp please will give brailiest <br>​
Kruka [31]
The perimeter is 375 feet.
6 0
3 years ago
if the length of the longest side of the rectangle is 20cm find the shaded area to the nearest hundredth PLEASE HELPP !
djverab [1.8K]

Answer:

150pi

Step-by-step explanation:

lets just say the two circles are 10 and 10 in diameter. so, one square is 5 radius. The square is 25pi area. so two are 50pi area. the area of the rectangle is 200, so 150pi

Please tell me if I'm wrong D:

3 0
3 years ago
Tess cuts x slices of bread. She splits them evenly among 9 plates. Write an expression that shows how many slices are on each p
slega [8]

there are 9 plates and x slices on each plate so 9x

4 0
3 years ago
Other questions:
  • What is the answer please <br> thank you
    13·2 answers
  • What is the value of a in the equation 5a – 10b = 45, when b = 3?
    13·2 answers
  • sonya can walk 6 kilometers in 3 hours. If she has to walk 10 kilometers, how much time will it take her?
    7·2 answers
  • 55 + 54 + x + 74 = 180<br> what would x be?
    15·2 answers
  • How would it look like if you graphed this equation. y = 2x - 2
    8·1 answer
  • Pls help what is Increase 5.4 by 1 1/27. <br><br>PLS HELP<br><br>T-T
    7·1 answer
  • Help me with this please
    6·2 answers
  • Write the following as an inequality.
    10·2 answers
  • Find the hcf of 24x3yz4,30x2y2z3 and 36 x3y2z3
    11·1 answer
  • How do you write 50% as a decimal ?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!