Ask question

Ask question

All categories

3 years ago

6

Dave wants to make a stone walkway.the rectangular walkway is 4 feet wide and 12 feet long. Each 2 foot by 2 foot stone covers a

n area of 4 square feet . How many stone covers an area of 4 squares feet. How many stone will Dave need to make his walkway?

1 answer:

Ad libitum [116K]3 years ago

5 0

A=L×W
1)Area of walkway
4×12=48

2)Area of stone
2×2=4

3)Divide
48÷4=12

12 stones

You might be interested in

Software to detect fraud in consumer phone cards tracks the number of metropolitan areas where calls originate each day. It is f

pashok25 [27]

Answer:

0.999987

Step-by-step explanation:

Given that

The user is a legitimate one = E₁

The user is a fraudulent one = E₂

The same user originates calls from two metropolitan areas = A

Use Bay's Theorem to solve the problem

P(E₁) = 0.0131% = 0.000131

P(E₂) = 1 - P(E₁) = 0.999869

P(A/E₁) = 3% = 0.03

P(A/E₂) = 30% = 0.3

Given a randomly chosen user originates calls from two or more metropolitan, The probability that the user is fraudulent user is :

$P(E_2/A)=\frac{P(E_2)\times P(A/E_2)}{P(E_1)\times P(A/E_1)+P(E_2)\times P(A/E_2)}$

$=\frac{(0.999869)(0.3)}{(0.000131)(0.03)+(0.999869)(0.3)}$

$\frac{0.2999607}{0.00000393+0.2999607}$

$\frac{0.2999607}{0.29996463}$

= 0.999986898 ≈ 0.999987

6 0

3 years ago

How would you solve

harkovskaia [24]

4r^-3 * 2r^2 =

4*(2r^(-3+2))

= 4*2r^-1

= 4*2(1/r)

= 4*(2/r)

=8/r

4 0

3 years ago

HELP ME PLS!!! help me if you see this pls.

Alex Ar [27]

I think it would be A because if you multiply the square by a 30 thinking there all the same space between it will give u 120 square yards

5 0

3 years ago

Read 2 more answers

AlekseyPX

Answer:

1

1

3

3

Step-by-step explanation: just cuz

8 0

3 years ago

What is 1 1/9 plus 3 5/8

Daniel [21]

I think the answer should be 4.7 but rounded up would be 5

6 0

2 years ago

Read 2 more answers