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
IrinaK [193]
2 years ago
8

A square room has a tiled floor with 81 square tiles. How many tiles are along an edge of the room?

Mathematics
1 answer:
Sladkaya [172]2 years ago
4 0

Answer:

36 tiles

Step-by-step explanation:

Because the room is square, the numbers of tiles along the edge of the room were multiplied by the same number, meaning that:

81 = x²

So to find x, we must square root both sides of the equation:

\sqrt{81} = \sqrt{x^2}

x = 9

So the length of one side is 9 tiles. Now to calculate the circumference, as each side of a square is the same length, we can multiply this number by 4:

9 * 4 = 36

So there are 36 tiles along the edge of the room.

Hope this helps!

You might be interested in
A VERTICAL line passes through the point (4, 5). Find an equation for this line.
Eduardwww [97]

Answer:

A

Step-by-step explanation:

slope of a vertical line is undefined

the equation is x= 4

6 0
3 years ago
the sum of two numbers is 45. the greater number is 9 more than the other number. Find each number. use a system of linear equat
SpyIntel [72]

Answer:

18 and 27

Step-by-step explanation:

Let x = first (smaller) number

Let y = second (larger) number

Sum of two numbers is 45:

⇒ x + y = 45

The greater number is 9 more than the other number:

⇒ y = x + 9

Substitute  y = x + 9  into  x + y = 45  and solve for x:

⇒ x + (x + 9) = 45

⇒ 2x + 9 = 45

⇒ 2x = 36

⇒ x = 18

Substitute found value for x into  y = x + 9  and solve for y:

⇒ y = 18 + 9

⇒ y = 27

Therefore, the two numbers are 18 and 27

5 0
2 years ago
Read 2 more answers
Jane drives at a constant rate of 45 miles per hour for 4 hours. How far will she have traveled in that time?
bearhunter [10]
180 miles per hour. 45*4 to get the answer.<span />
6 0
3 years ago
Evaluate the given algebraic expressions using the value of the variables:
lana66690 [7]

1. 6(3-8)-10

=6(-5)-10

=-30-10

=-40

2.30(3)+15(10)

=90+150

=240

3. 2(3)(3+32+32)

=6(67)

=402

4 0
3 years ago
A student earns $11.75 per hour for gardening. if she worked 21 hours this month, then how much did she earn? show work​
ankoles [38]

Answer:

$246.75

Step-by-step explanation:

A student earns $11.75 for 1 hour

If she works for 21 hours this month then the total amount earned can be calculated as follows

= 11.75 × 21

= 246.75

Hence the total amount earned this month is $246.75

4 0
2 years ago
Other questions:
  • The smallest known bacteria are from the genus Mycoplasma and can measure as small as 300 nanometers in diameter. Given that 1 m
    13·1 answer
  • 14+7×54÷6-7 work for the problem
    12·2 answers
  • What is the equivalent of pi over 6 radians in degrees?
    8·1 answer
  • One day, Donnie observes that the wind is blowing at 6 miles per hour. A unladen swallow nesting near Donnie’s house flies three
    11·1 answer
  • A probability experiment is conducted in which the sample space of the experiment is upper s equals { 1 comma 2 comma 3 comma 4
    11·1 answer
  • In 4 month, 104 gallons were used(determine gallons per month)
    7·1 answer
  • Thanks, to everyone asking questions and giving answers. I finished my adult diploma today and a lot of it came from all of your
    10·2 answers
  • Consider this expression...
    14·1 answer
  • काद
    10·1 answer
  • One of the tables shows a proportional relationship.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!