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
melisa1 [442]
3 years ago
6

Jane cuts a piece of twine into three pieces.The second pieces is 7 times as long as the

Mathematics
1 answer:
Dovator [93]3 years ago
6 0
Twine into three pieces, lets call them x, y and z

The second piece is 7 times as long as the first piece
7x = y
The third piece is 5 feet longer than the first piece
x + 5 = z
The total length of twine is 320 feet
x + y + z = 320

This is a simultaneous equation.
My goal is to make the final equation in terms of x <span>i.e. 5.5x = 320
</span>I choose the final equation because it is the only equation which has a value in it.

We will substitute the first and second equation into the third equation.
7x = y , x + 5 = z
x + y + z = 320
x + (7x) + (x+5) = 320
9x + 5 = 320
9x = 315
x = 35
Now that we know x, we can substitute it into the first and second equation to find x and y
7x = y              =>        7(35) = y      =>   245 = y
x + 5 = z          =>        (35) + 5 = z  =>   40 = z

In summary
>The first piece, x, is 35 feet long
>The second piece, y, is 245 feet long
>The third piece, z, is 40 feet log
You might be interested in
1. What is the radius<br> (1 Point)<br> 11 cm
mr_godi [17]

Given that we need to determine the radius of the circle.

<u>Radius:</u>

By definition of radius of circle, the radius is the  length of the line which is drawn from the center of the circle to any point on the circle.

From the figure, we need to determine the radius of the circle.

As, we can see that, the distance from the center of the circle to the point on the circle is 11 cm.

Since, we know that, the radius is the distance from the center of the circle to the point on the circle then, the radius of the given circle is 11 cm

Thus, radius of the circle is 11 cm.

3 0
3 years ago
Can you help me and give me the snow you got the answer right everything down
ExtremeBDS [4]
1. 2/100 as a percent is 2% and as a decimal it is 0.02

3. 9/10 as a percent is 90% and as a decimal it is 0.9

5. 48% as a decimal is 0.48 and as a fraction is 48/100

7. 0.04 as a percent is 4/100 and as a percent of is 4%

Hope I helped you
6 0
3 years ago
The three shapes below represent the bases of three different prisms. Each grid is 1 unit x 1 unit, and each prism has a height
8_murik_8 [283]
Then it’s 20 units I think
8 0
3 years ago
Help please? I need it lol
ddd [48]

Answer:

Since magnesium = 2, and potassium = 1, magnesium is greater than potassium (2 > 1).

If we assign these elements letters, m and p respectively,

M > P

6 0
3 years ago
I see 2 people sitting on the bench at the playground. One was Deaf and one was blind.
True [87]

Answer:

the blind one

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Can someone please help me
    10·2 answers
  • Standard algorithm 3÷5316
    13·1 answer
  • Cheese sticks that were priced at "10 for 1 dollar are now "4 for 1 Dollar. Find each percent change. Find the percent increase
    10·1 answer
  • Identify the minimum value of the function y = 3x2 − 12x + 10.
    8·1 answer
  • Use the slopes of lines A and B to show that they are perpendicular to the given line.
    13·1 answer
  • What is x divided by 2
    9·2 answers
  • 4 elevado a la 2 por 4 elevado a la 5
    15·1 answer
  • Which is the equation of the same line as y = 3x - 8?
    8·1 answer
  • Solve for x<br> thank you
    6·1 answer
  • JoJo Seaweed walks at a constant rate of 8 ft in 2 s. The table shows the relationship of feet to seconds. What is the constant
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!