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
Dimas [21]
3 years ago
12

The perimeter of a rectangular floor is 50 feet. find the dimensions of the floor if the length is four times the width.

Mathematics
1 answer:
lapo4ka [179]3 years ago
3 0
Length is 20 
width is 5 

let me know if you need more details 
You might be interested in
A. -3<br> B. -4<br> C. -2 and 1<br> D. 0
Alinara [238K]
When x=1 and -2 so it is C
8 0
3 years ago
Read 2 more answers
In a large population of college-educated adults, the mean IQ is 118 with a standard deviation of 20. Suppose 200 adults from th
cricket20 [7]

Answer: 0.0793

Step-by-step explanation:

Let the IQ of the educated adults be X then;

Assume X follows a normal distribution with mean 118 and standard deviation of 20.

This is a sampling question with sample size, n =200

To find the probability that the sample mean IQ is greater than 120:

P(X > 120) = 1 - P(X < 120)

Standardize the mean IQ using the sampling formula : Z = (X - μ) / σ/sqrt n

Where;  X = sample mean IQ; μ =population mean IQ; σ = population standard deviation and n = sample size

Therefore, P(X>120) = 1 - P(Z < (120 - 118)/20/sqrt 200)

                                 = 1 - P(Z< 1.41)

The P(Z<1.41) can then be obtained from the Z tables and the value is 0.9207

Thus; P(X< 120) = 1 - 0.9207

                          = 0.0793

3 0
3 years ago
Ron's piano lesson starts in 2 hours. It takes him 30 minutes to get to the lesson. He has
RideAnS [48]

Answer:

2 hours=120 mins

120-(45+25)

120-(70)

50

Ron has enough time to finish his homework and walk the dog before his lesson. Ron should overestimate the total time needed. Since Ron has 50 minutes to spare he could add 25 to home work time and another 25 to walking his dog. he still ha time to do both.

4 0
3 years ago
The area of a square is 32 cm. find the length of the diagonal
Over [174]

Answer:

8 cm

Step-by-step explanation:

Squares have equal side lengths so if we call each side x, then x × x gives us the area (32 cm²). This means that x² = 32 and therefore, one side is √32 cm.

Next, to work out the diagonal we can use Pythagoras' theory, since we can form a right-angled triangle. a² + b² = c² (c is the diagonal or the hypotenuse)

(√32)² + (√32)² = c²

(note: the square and the square root cancel out)

32 + 32 = 64

c² = 64 ∴ c = √64 which is 8

Hope this helps!

4 0
2 years ago
Read 2 more answers
Identify the vertex of the function, fx) = 3(x - 1)2 + 5.
madam [21]

Answer:

fx) = 3x+4

Step-by-step explanation:

1. step:

solve the bracket

fx) = 3(x - 1) 2 + 5

fx) = 3x-1+2+5

2. step:

use the BEDMAS form.

fx) = 3x-3+7

fx) = 3x+4

8 0
3 years ago
Other questions:
  • Write x^2 + 6x -7 in the form (x+a)^2 +b where a and b are integers please
    7·1 answer
  • 1. In the diagram below , lines a and b are paraller and cut by traversal, t of angle 3 is 120 degrees, find the measure of angl
    5·1 answer
  • Solve. check for extraneous solutions <br> 3 l4w-1l -5 = 1
    11·2 answers
  • mia spent $7.25 at the mall joselyn spent 3times as much rameesha spent $5.00 more than joselyn how much did rameesha spend?
    14·1 answer
  • Fill inn both boxes plz
    11·1 answer
  • Solve for x: x squared minus 25 equals 0
    7·2 answers
  • assuming there are no reflection of diliations explain how you would write the equation of the function whose is stretched graph
    6·1 answer
  • Solve this expression (4-1/2)*0.6+1.7 show ur work I will give bràinliest​
    12·2 answers
  • Find the percent increase. Round to the nearest percent.
    13·2 answers
  • The teacher plans to buy pillowcases for his students. Each student needs 55 cm of material and there are 83 students. how many
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!