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
Molodets [167]
3 years ago
8

A circular pool with a diameter of 18 ft will have a uniform 4 ft concrete walkway poured around it. If the concrete cost $4.25

a square foot, how much will it cost for the concrete?
A. $1,714.07
B. $1,247.08
C. $276.40
D. $1,174.70
Mathematics
2 answers:
zysi [14]3 years ago
4 0

A circular pool with a diameter of 18 ft will have a uniform 4 ft concrete walkway poured around it. If the concrete cost $4.25 a square foot, how much will it cost for the concrete?

This can be solve be solving the area of walkway

Area of walkway is equal to = (pi)( 9 ft +4) ^2– (pi)(9ft)^2

= 276.46 sq ft

Cost = 276.46 sq ft * ($4.25 a square foot) = $1174.70

svp [43]3 years ago
4 0

Answer:

$1,174.70

Step-by-step explanation:

Given : A circular pool with a diameter of 18 ft will have a uniform 4 ft concrete walkway poured around it.

To Find: If the concrete cost $4.25 a square foot, how much will it cost for the concrete?

Solution:

A circular pool has  diameter of 18 ft will have a uniform 4 ft concrete walkway   around it.

So radius = diameter /2 =18/2 =9 feet

Thus Area of circular pool = \pi r^{2} = \pi 9^{2}

Use π =3.14

  Thus Area of circular pool =  3.14*9^{2}

                                             =  3.14*81

                                             =  254 . 37 square feet

Since the Radius of the pool with concrete = 9 + 4= 13

So, Area of circular pool with concrete=   3.14*13^{2}

                                             =  3.14*169

                                             =  530.66 square feet

Now surface area of concrete = area of pool with concrete - area of pool

Surface area of concrete= 530.66 - 254.34 = 276.32 square feet

If the concrete cost $4.25 a square foot of surface area,

So the cost for the concrete of  276.32 square feet  =  276.32 * 4.25 = $ 1174.36

The option close to our answer is $1,174.70

Thus Option D is correct

You might be interested in
Pliss solve and give evidence
Mice21 [21]

Answer:

4f + 3g

Step-by-step explanation:

g + 3f + f + g + g

3f + f = 4f

g + g = 2g + g = 3g

4f + 3g

6 0
3 years ago
Read 2 more answers
16(-4/3)<br> Please help me!!!
baherus [9]
I got -64/3 for this problem.
3 0
3 years ago
Two numerical patterns are shown below:
svet-max [94.6K]

Answer:

Each term in Pattern A is one half the corresponding term in Pattern B.

Step-by-step explanation:

6 is half of 12 , 12 half 24, 18 half of 36, 24 half of 48 , 30 half of 60 etc.

8 0
3 years ago
Read 2 more answers
Alan and Margot each drive from City A to City B, a distance of 147 miles. They take the same route and drive at constant speeds
Westkost [7]

Answer:

Margot gets from A to B faster

Step-by-step explanation:

Alan takes 2 hr and 35 min = 2. 58... hr

Margot takes 147/64 hr = 2.296.. hr

7 0
3 years ago
If <br> −6x+9y=−4 is a true equation, what would be the value of <br> 9y−6x?
Arisa [49]

Answer:

It will be 30

Step-by-step explanation:

Also Have a good day I love you so much Make sure to drink plenty of fluids ♡ ♡

7 0
3 years ago
Other questions:
  • Let f(x) = twenty four over the quantity of 3 x minus two . Find f(−2).
    13·1 answer
  • Find the product (2x – 3)(4x^2 + 5x – 1)
    13·1 answer
  • How many cups of flour do we put in the mix
    5·1 answer
  • two cards are chosen at random from a deck of 52 playing cards. what is the probability that they are both aces?
    15·1 answer
  • What is the slope of the line with equation <br>-3+6y=12
    15·2 answers
  • I REALLY NEED HELP!!!! Determine how far the intersection of Oak Street and New Street will be from the intersection of Main Str
    9·1 answer
  • True or false weight is a measurement of force
    8·1 answer
  • Question in the picture! <br><br><br> looking for the answer of 1) by the way! :))
    13·2 answers
  • A 15-foot ladder is placed against a vertical wall of a​ building, with the bottom of the ladder standing on level ground 9 feet
    6·1 answer
  • Give me the awnser pls fast
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!