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
Travka [436]
3 years ago
8

The perimeter of a triangle is 84. The longest side is 7 meters less than twice the length of the shortest side, x. The middle s

ide is 7 meters longer than the shortest side. What is the length of each side?
Mathematics
1 answer:
elixir [45]3 years ago
4 0
Perimeter = Side + Side + Side
Side 1 = x
Side 2 = x + 7
Side 3 = 2x-7

Plug into the equation:
84 = x + (x + 7) + (2x-7)
84 = x + x + 7 + 2x - 7

Combine like terms:
84 = 4x

Divide by 4 and solve for x:
21 = x

Side 1 = 21

Side 2 = 28
21+7=28

Side 3 = 35
21(2) - 7 = 42 - 7 = 35
You might be interested in
There are 60 students in the speech contest. Yesterday, 2/3 of them gave their speeches. Today, 1/4 of the remaining students ga
Firlakuza [10]

Answer:

15 students still haven't given their speeches

Step-by-step explanation:

2/3 of 60 is 40

60 - 40 = 20 left

1/4 of 20 is 5

20 - 5 = 15

15 students still haven't given their speeches

3 0
3 years ago
What is the answer for 2x+34
diamong [38]

Answer:

16

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
The sum of two numbers is 70 and their difference is 30. Find the two numbers
ikadub [295]

Answer:

Our two numbers are 50 and 20

Step-by-step explanation:

Sum means add together

Difference means subtract each other

x + y = 70

x - y = 30

subtract from each other

2x = 100

divide both sides by 2

x = 50

our first number is 50

50 + y = 70

subtract both sides by 50

y = 20

Our two numbers are 50 and 20

8 0
3 years ago
The sales tax on the model rocket shown is $1.92. What is the percent of sales tax?
fgiga [73]
It’s 192% because you just need to remove all the points :) hope i helped
3 0
3 years ago
What is the solution to this equation? –0.2(x – 20) = 44 – x
Airida [17]

Answer: x = 50

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • A scatterplot has a negative, linear correlation. Which statement is true about the relationship between the x- and y-values? As
    15·2 answers
  • Explain in your own words what is meant by combine like terms.
    9·2 answers
  • Which statement is true
    14·1 answer
  • WILL GIVE BRAINLIEST A zoo train ride costs $3 per adult and $1 per child. On a certain day, the total number of adults (a) and
    10·2 answers
  • Use the following compound interest formula to complete the problem. A = P (1 + StartFraction r over n EndFraction) superscript
    13·1 answer
  • Sketch the graph of y=2(x+1)^2 and identify the axis of symmetry.
    14·2 answers
  • Lacy walks 3 miles in one hour. How many feet does Lacy walk in 30 minutes
    13·1 answer
  • Find the quotient and simplify if possible q/7 ÷ q/26
    14·2 answers
  • If Jim works at Fire Fighting Equipment, has $32,874 in sales in one week, and as paid a weekly salary of $452 plus a commission
    6·1 answer
  • The circumference of a circle is 44π cm. find the diameter, the radius, and the length of an arc of 110.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!