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
djyliett [7]
3 years ago
8

a pool in the shape of rectangle has a perimeter of 80 feet. The pool is 8 Feet less wide than its long. Find the length and wid

th of the pool
Mathematics
1 answer:
Aneli [31]3 years ago
5 0
Hello!

To solve this, lets put it into a system of equations where w=width and L=length.
2w+2L=80
L-8=w

To solve, we see that w=L-8. We can substitute this in the first equation to find L and then w.

2(L-8)+2L=80
2L-16+2L=80
4L-16+80
4L-16=80
4L=96
L=24

Now that we know L=24, we can find w. 24-8=16. Now we know that L=24 and w=16.

Lets check our answer. In our original system of equations, we have 48+32=80, which is true, and 24-8=16. Also, the perimeter must equal 80. 16+16+24+24=80.

As our final answer, the width of the pool is 16 feet, and the length is 24 feet.

Hope this helps!

You might be interested in
Mr. Thompson received a water bill for $85.98. The bill covered three months of service. He used the same amount of water each m
Darya [45]
The answer is blow me

8 0
3 years ago
Read 2 more answers
The radius of a semicircle is 3 kilometres. What is the semicircle's perimeter?
alina1380 [7]

Answer:

In terms of Pi: 3\pi + 6 km

Exact value (rounded): 15.42477 km

Approximated (3.14): 15.42 km

Step-by-step explanation:

Hello!

A semicircle's perimeter can be found using the formula: P = \pi r + 2r

We can plug in the values to solve for the perimeter.

<h3>Solve</h3>
  • P = \pi r + 2r
  • P = \pi(3)+ 2(3)
  • P = 3\pi + 6

In terms of Pi, it is 3\pi + 6,

Exact value of Pi, it is 15.42477

Approximation of Pi (3.14), it is = 15.42

6 0
1 year ago
I need help on this other question sry if it is hard... here is the pic.
fgiga [73]

Answer:

142%

Step-by-step explanation:

i may  be wrong but hopefully im not!!

5 0
1 year ago
Read 2 more answers
Ishaan is 3 times as old as Christopher and is also 14 years older than Christopher.
aniked [119]
<span>The correct answer is: 21

Explanation:
Let's first assume few variables!

x = Ishann's age (in years)
y = Christopher's age (in years)

1. Ishann is 3 times as old as Christopher can be represented mathematically as:
x = 3y ---- (1)

2. Ishann is 14 years older than Christopher can be represented mathematically as:
x = y + 14 ---- (2)

Get the value of y from Equation (1) and plug it in Equation (2):

(2) => x = (x/3) + 14
3x = x + 42
2x = 42
x = 21

Hence Ishann is 21 years old!</span>
3 0
2 years ago
Read 2 more answers
2. A car takes 7 hours 50 minute to travel 549 9/10 km.
lorasvet [3.4K]
2.)

average velocity=(change in distance)/(change in time), in this case:

v=(549 9/10)/(7 50/60)

v=(5499/10)/(470/60)

v=(5499/10)(60/470)

v=32994/470

v=70.2 km/hr

...

picture

Make two position functions...

c=15t, and r=120-20(t-1)

c=15t, r=140-20t

They meet when c=r so:

15t=140-20t  add 20t to both sides

35t=140  divide both sides by 35

t=4

So they will meet 4 hours after Cindy leaves at 1 pm, thus they meet each other at 5 pm.

check...

c=15(4)=60

r=120-20(4-1)

r=120-20(3)

r=60




3 0
3 years ago
Other questions:
  • Michael earned $159 mowing lawns all summer. If he mowed 39 lawns, about how much did he make per lawn?
    10·1 answer
  • ethan eats 16 french fries and consumes 224 calories how many fries does ethan eat if he consumes 406 calories
    15·2 answers
  • The distance from the Earth to the sun is 93 million miles. In scientific notation that is _____ miles.
    9·2 answers
  • What number is 34% of 65?
    12·1 answer
  • Help on problem 7!<br> i think i have to do a2/a1 to be correct or something. please help!
    11·1 answer
  • Need help with ALL 3 questions, WILL AWARDS BRAINLY
    10·2 answers
  • Enter a range of values for x.
    6·2 answers
  • An item is regularly priced at $30. It is now priced at a discount of 30% off the regular price. What is the price now?
    6·1 answer
  • 165​% of what number is ​66?
    9·1 answer
  • SELECT TWO reasonable first steps for solving the equation 2(4x-11)=10.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!