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
Hunter-Best [27]
3 years ago
11

A 30 foot board is cut into two pieces.how long is each piece if the second piece is 3 feet longer than twice the first piece

Mathematics
2 answers:
mash [69]3 years ago
8 0
The first piece is 9 feet and the second piece is 21 feet. Explanation:

We know that a 30 foot board is cut into two pieces and that the second piece is three feet longer than twice the first piece.

Let the first piece = x

Let the second piece = 2x + 3

x + 2x + 3 = 30

Combine like terms

3x + 3 = 30

Subtract 3 from both sides

3x = 27

Divide 3 from both sides and we get:

x = 9

The first piece is 9 feet and now we need to find the second piece.

We can use the first piece to find the second piece.

Substitute 9 for x:

2(9) + 3

18 + 3 = 21

So the second piece is 21 feet.

21 + 9 = 30 feet
pochemuha3 years ago
4 0

Answer:

First piece would be 9 feet, second would be 21.

You might be interested in
I need help finding the area of a figure, it has 15ft of heigh on the left side, 20ft wide, and it's 20ft tall on the right side
spin [16.1K]

Answer:

Step-by-step explanation:

area=(20 ×20)÷2=200 sq . units

7 0
3 years ago
In which direction does the parabola open?
svetoff [14.1K]
The parabola opens up as the largest term has a positive leading co-efficent


7 0
3 years ago
What do i do to find the value of an expression
Veseljchak [2.6K]

Answer:

A variable is a letter, for example x, y or z, that represents an unspecified number.

6+x=12

To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12.

If we know the value of our variables, we can replace the variables with their values and then evaluate the expression.

Step-by-step explanation:

6z+4x=?

 

Solution: Replace x with 3 and z with 2 to evaluate the expression.

6z+4x=?

6⋅2+4⋅3=?

12+12=24

Hope this helps @(^_^)@

7 0
3 years ago
Solve for x. Round to the nearest tenth of a degree, if necessary.
monitta

Answer:

  • 49.6°

Step-by-step explanation:

  • tangent = opposite / adjacent
  • tan x = 40/34
  • x = arctan (40/34)
  • x ≈ 49.6°
8 0
3 years ago
Read 2 more answers
howdy partner here is a simple math question 3222+12=66x4 whoever get right get g- keyvonnn deletes your question
prisoha [69]

Answer:

3234=264

Step-by-step explanation:

hope you find this helpfull

3 0
2 years ago
Read 2 more answers
Other questions:
  • PLEASE HELP WILL GIVE BRAINLIEST PLEASE PLEASE PLEASE ASAP!!
    15·2 answers
  • For the geometric series 1 + 3 + 9 + 27 + . . . , find the sum of the first 10 terms.
    15·2 answers
  • 500 time 10 unit form
    14·1 answer
  • Give the domain and range.
    11·1 answer
  • Willis bought a gallon of paint. He painted a wall that is 9 ft high and 10 ft wide. Then he used the rest of the paint to paint
    7·1 answer
  • Look at the image, please :)
    13·1 answer
  • The hypotenuse of a right triangle measures 20cm. The sum of the lengths of the other two sides is 28cm. Find the lengths of tho
    11·1 answer
  • Please help show work <br><br> A 19<br> B 37<br> C 58<br> D 24
    12·1 answer
  • The LCM of 3 and 8 is ____.<br><br> Numerical Answers Expected!<br><br> Answer for Blank 1:
    5·1 answer
  • It is estimated that approximately 8.23% Americans are afflicted with diabetes. Suppose that a certain diagnostic evaluation for
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!