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
liraira [26]
2 years ago
5

The length of a rectangular field is 7 m less than 4 times the width. The perimeter is 136 m. Find the width and the length

Mathematics
1 answer:
Helga [31]2 years ago
6 0

Answer:

Step-by-step explanation:

Represent the width by W.  Then, "The length of a rectangular field is 7 m less than 4 times the width" expressed symbolically is

L = 4W - 7 (dimensions in meters)

Recall that the perimeter formula in this case is P = 2L + 2W, and recognize that the perimeter value is 136 m.  After substituting 4W - 7 for L, we get:

136 m = 2(4W - 7) + 2W, or

136 = 8W - 14 + 2W, or

150 = 10W        These three equations are equivalent mathematical statements.

150 = 10W reduces to W = 15 (meters).

Part A:  the independent variable is W, the width of the field.

Part B:  The mathematical statement is 136 m = 2(4W - 7) + 2W, which after algebraic manipulation becomes 150 = 10W.

Part C:  The above equation can be solved for W:  W = 15 meters.  This is the value of the independent variable.

You might be interested in
4. 46 is what percent of 69?
sergij07 [2.7K]

Answer:

66%(technically 0.66 repeating)

Step-by-step explanation:

We need to figure out what percentage of 69 equates to 46. In other words, we need to figure out what percentage <u>times</u> 69 equals 46:

percentage*69 = 46

Now that we formed this equation, we can solve for the percentage as if it was x.

First lets simplfy:

percentage*69 = 46 -- > 69percentage = 46

Now we can solve for x just by getting x alone, which means we must remove the coefficent. We can do this by dividing both sides of the equation by 69:

percentage = \frac{46}{69}

=

percentage=0.66

Putting this into the form of percentage, we must multiply by 100. Since, the percentage form of a decimal is 100 times bigger(moved up 2 decimal places):

percentage = 0.66*100

=

percentage = 66%

Hope this helps! :3

4 0
2 years ago
The number of miles driven is proportional to the gallons of gasoline used. The graph shows this relationship. What is the unit
slamgirl [31]
I think the answer is 9.5 because that is the only number that can be multiplied by 4 that gives you 38. 
(4,38) = y=9.5x
6 0
2 years ago
57 over 9 solve fraction as it was a division problem
shutvik [7]
The answer is 6.3...

the three repeats

hope this helps!
5 0
2 years ago
Read 2 more answers
Hi there can anyone help me with this question please
forsale [732]
Mean means average, so you would add the numbers up and divide by the amount of numbers in the set. 
4 0
3 years ago
can someone please help i beg you. i have to say why this is wrong and solve this correctly. i beg you please
shepuryov [24]

So your parent hasn't joined you on the Brainly express to Achievement-ville. We'll get them on board. Parents are busy people, but you can be the boss and remind them. Remind them how Brainly boosts you with expert knowledge. Remind them that tons of students already get grade upgrades with Brainly Plus. Remind your parent of the power they have to raise you to your full potential. We think they would agree. You deserve every education advantage.

6 0
2 years ago
Read 2 more answers
Other questions:
  • The graph below shows the number of new clients brought into Sunnydays Insurance Company. Why is the graph misleading?
    5·1 answer
  • If I told you the circumference of a circle was 9 , what would the diameter be ?
    12·1 answer
  • A linear equation for the points ( -3, 12) ( 2, 7)
    5·1 answer
  • Arrange the rational numbers −7/10, 5/−8, 2/−3in ascending order.
    5·1 answer
  • NEED HELP!!!!!!!!!!!!!!!!! Math problem! Please help!
    11·1 answer
  • I NEED HELPPP PLEASE
    7·1 answer
  • Twelve eggs cost $2.16. Based on this information, how much should 18 eggs cost?
    15·1 answer
  • Help me and show your work.
    15·1 answer
  • 5) Write the missing numbers to find the<br> quotient of 782 = 17. So that 782 = 17 = 46
    5·1 answer
  • I need help due today
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!