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
laila [671]
3 years ago
10

Quadratic Equation Word Problem

Mathematics
1 answer:
Crazy boy [7]3 years ago
5 0
------------------------------------------------------
Define x :
------------------------------------------------------
Let the width be x.

------------------------------------------------------
Find Area of the walkway :
------------------------------------------------------
Area = 30x + 30x + 20x + 20x + 4x²       
Area = 100x + 4x²

------------------------------------------------------
Find cost of the walkway in term of x:
------------------------------------------------------
1m² = $10
100x + 4x² = 10(4x² + 100x)
(100x + 4x²)m = $(40x² + 1000x)

------------------------------------------------------
Find Width of the walkway :
------------------------------------------------------
The budget is $6000

40x² + 1000x = 6000
40x² + 1000x - 6000 = 0
x² + 25x -150 = 0              //Divide by 40 through
(x - 5)(x + 30) = 0             //Factorise
x = 5 or x = -30 (Rejected, width cannot be negative)

------------------------------------------------------
Answer: The width can be 5m wide.
------------------------------------------------------

You might be interested in
URGENT 10 POINTS BRAINLIEST
REY [17]

For a the answer is: 48 km/hr. For b the answer is: The distance could be longer, so if she took hours she would have to drive faster; or if starter distance she would have driven slower

3 0
3 years ago
Carter answered 5% of the questions
Ipatiy [6.2K]

Answer:19/20

1-20=19

1÷20=0.05

0.05=5%

I hope this is good enough:

4 0
3 years ago
By which angle measures can the regular pentagon be rotated so it maps onto itself?
vazorg [7]

Answer:

hi there the answer is 72

Step-by-step explanation:

sorry but my work is on a piece of paper in front of me

5 0
3 years ago
The value of the digit 5 in 25,513 is how many times the value of the digit 5 in 357
SOVA2 [1]

Are there any answer choices??

7 0
3 years ago
1.625 round to the nearest tenth?need help
padilas [110]
1.625 rounded to the nearest hundredth is 1.63

5 0
3 years ago
Read 2 more answers
Other questions:
  • 11x - 3 + 4x greater than or equal to 142 1/2
    7·1 answer
  • Can anyone who has the time help me with this question please??
    9·1 answer
  • ALGEBRA 1, SEM. 2
    12·1 answer
  • Which line will have no solution with the parabola y – x + 2 = x2? y = –3x –3 y = –2x –3 y = 2x –3 y = 3x –3
    5·1 answer
  • The sum of two numbers is 47. The sum of the smaller and 2 times the larger is 76. Find the numbers.
    13·1 answer
  • I NEED HELP AGAIN PLEASE 7 7/10+ 7 2/10
    6·2 answers
  • Complete the table using the equation y=9x + 6.
    12·1 answer
  • What are the domain and range of the relation given in the table? Will Mark Brainliest. Need Help ASAP. ​
    6·1 answer
  • Enrique has to pay 80% of a $200 phone bill. Explain how to use equivalent ratios to find 80% of $200.
    11·2 answers
  • Which sentence explains the correct first step in the solution of this equation?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!