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
sleet_krkn [62]
3 years ago
7

Two sides of a triangle

Mathematics
1 answer:
True [87]3 years ago
4 0

step 1: open brackets n rmb to flip the signs

step 2 (optional): rearrange to make the equation clearer to add/minus

length of 3rd side:

(8x + 3) - (2x + 1) -(5x + 2)

= 8x + 3 - 2x -1 - 5x -2

= 8x -2x -5x +3 -1 -2

= x

Therefore, length of 3rd side is X cm.

---

If perimeter = 75cm,

8x +3 = 75

8x = 75-3

8x = 72

x = 9 cm

Therefore,

1st side = 2(9) +1

= 19 cm

2nd side = 5(9) +2

= 47 cm

3rd side = 9 cm

You might be interested in
Which statements about experimental probability are true? Select three options. Experimental probability has the total number of
erma4kov [3.2K]

Answer:

C D E or 345

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Please help ASAP thank you
koban [17]
R - 18 = 50

r = 50 + 18 = 68
Hence Rick is 68 yrs old
7 0
2 years ago
Simplify each express<br> 11. b-4c9d6
marshall27 [118]
Look give me ......................... pls

4 0
3 years ago
on the school trip, Margie spent $12.40 on 2 souvenirs, including tax. Each souvenir cost the same amount. The amount of tax was
Klio2033 [76]
$5.84 is the correct answer
6 0
3 years ago
If a car travels 23 miles on 1.0 gal of gas, how many liters of gasoline are needed for a 135 mile trip?
cluponka [151]
<span>Solution can be gained by using "Product of means = Product of extremes" concept. So the information we have is 23 miles on 1 gal and 135 mile on 'x' gal. 23 : 1 :: 135 : x As per Product of means = Product of extremes, 23 multiplied x = 135 multiplied by 1. And x will be 135 divided by 23 which is 5.86 gal Now, we have to convert gal to liters, 1 gal = 3.78 liters, so 5.86 gal = 5.86 multiplied by 3.78, which is 22.15 liters. Hence, 22.15 liters of gasoline are needed for a 135 mile trip</span>
3 0
3 years ago
Other questions:
  • What should replace x in the equation<br> + 2 = 7?
    5·2 answers
  • Who answered Stacey's question correctly, Krista or Kevin? Based on the proportional relationship given, how much money will Sta
    13·1 answer
  • What is the mean of variable a<br><br><br><br><br><br>piz help me i have one more question
    11·1 answer
  • 54. log(20x) - log4 = 2​
    14·1 answer
  • Please help me do this Ratios <br><br><br> ____:12 = 7: 14
    12·2 answers
  • The first step of Elimination in solving a system is to find opposites of one of the variable terms. Explain in your own words,
    11·2 answers
  • Why is line plots display individual data true?
    15·1 answer
  • Can someone plz solve this 6x + (9x + 4) - 11 = 21x - 7 ​
    15·1 answer
  • 2 horses ran from the same place from the at same time one horse ran at 2 miles per second and the other ran at a speed for 18 m
    7·1 answer
  • Can someone please help me with this it’s due tonight
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!