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
padilas [110]
Answer: B

Trust me I took the test right now
6 0
2 years ago
The answer to a word problem should always include which of the following
irina1246 [14]

Answer:

D. variables

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
In ABC, the measure of sides c is 3.9 cm If DEF is a dilation ABC with a scale factor of 2.5 what is the measure of side f
White raven [17]

Answer:

F = 9.75cm

Step-by-step explanation:

Given

In ABC;

C = 3.9cm

Dilation = 2.5

Required

Determine side F

In the given question;

DEF is a dilation of ABC

Comparing both triangles side by side,

Side F is a direct dilation of side C and this is calculated as follows

F = Dilation * C

F = 2.5 * 3.9cm

F = 9.75cm

3 0
3 years ago
If you travel 1000 feet in 5 minutes, what is your speed per minutes?
Papessa [141]

Answer: 200 feet

Step-by-step explanation:

1000feet/5feet= 200feet

6 0
2 years ago
Read 2 more answers
Janaina is trying to solve the following equation by completing the square: x^2+18x-9 = 0.She successfully rewrites the above eq
valentinak56 [21]
The Answer Is :
c = x^2 + 2bx + b^2
3 0
3 years ago
Other questions:
  • Carl's dog weighs 2 1/3 times what judy's dog weighs. if judy's dog weighs 35 1/2 pounds, how much does cal's dog weigh?
    9·1 answer
  • MEDICAL TESTS. Medical tests are used to indicate whether a person has a particular disease. The sensitivity of a test is the pr
    8·1 answer
  • A muffin recipe, which yields 12 muffins, calls for 2/3 cup of milk for every 1 3/4 cups of flour. The same recipe calls for 1/4
    11·1 answer
  • Use the graph to find the bears aver heart rate
    11·1 answer
  • This is the easiest question I've asked.Hope you guys can work it out.Correct answer gets brainliest.
    14·2 answers
  • 5/16 = 15/18 is proportion
    11·1 answer
  • 111111.11 rounded to the nearest thousand
    11·1 answer
  • Write the repeating decimal number as a mixed number?
    8·1 answer
  • I neep help!!! what is the answer???
    15·2 answers
  • Graph line y=-2x+5 with no x
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!