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Solnce55 [7]
3 years ago
13

Mr. Smith built a rectangular-shaped sandbox for his children, measuring 4 feet by 4 feet by 6 inches. Sand has a density of app

roximately 100 pounds per cubic foot and is sold in 50-pound bags for $3.50 each. How much will it cost Mr. Smith to completely fill the sandbox?
Mathematics
1 answer:
BabaBlast [244]3 years ago
8 0

Answer:

$56.

Step-by-step explanation:

The volume of the box = 4 * 4 * 1/2 = 8 cu ft.

So the weight of sand required = 100* 8 = 800 lbs.

Therefore he requires 800 / 50 = 16 bags of sand.

The  cost will be 16 * 3.50

= $56

You might be interested in
The diameter of the circle above is 22 cm. What is the circumference of the circle? (Use = 3.14.)
postnew [5]

Answer:

69.08cm

Step-by-step explanation:

The formula for the circumference is

pi times diameter=circumference

Since we are using 3.14 and we know the diameter we can plug that in

3.14 times 22= circumference

69.08=circumference

8 0
2 years ago
How many pairs of consecutive natural numbers have a product of less than 40000? I am in 5th grade. This is supposed to be easy
Ugo [173]

Answer:

There are 199 pairs of consecutive natural numbers whose product is less than 40000.

Step-by-step explanation:

We notice that such statement can be translated into this inequation:

n \cdot (n+1) < 40000

Now we solve this inequation to the highest value of n that satisfy the inequation:

n^{2}+n < 40000

n^{2}+n -40000

The Quadratic Formula shows that roots are:

n_{1,2} = \frac{-1\pm\sqrt{1^{2}-4\cdot (1)\cdot (-40000)}}{2\cdot (1)}

n_{1,2} = -\frac{1}{2}\pm \frac{1}{2} \cdot \sqrt{160001}

n_{1} = -\frac{1}{2}+\frac{1}{2}\cdot \sqrt{160001}

n_{1} \approx 199.501

n_{2} = -\frac{1}{2}-\frac{1}{2}\cdot \sqrt{160001}

n_{2} \approx -200.501

Only the first root is valid source to determine the highest possible value of n, which is n_{max} = 199. Each natural number represents an element itself and each pair represents an element as a function of the lowest consecutive natural number. Hence, there are 199 pairs of consecutive natural numbers whose product is less than 40000.

6 0
3 years ago
15. A farmer records the number of eggs that chickens on the farm produce each week. The table
morpeh [17]
The answer to the question you are asking is 56
4 0
3 years ago
What are the steps in solving the equation 4(2x + 3) = 10x?
Dmitry [639]
First you distribute 4 to 2x and 3. Then after you do that you get 8x+12=10x
3 0
3 years ago
Read 2 more answers
Languages Spoken in Australia
RideAnS [48]
Answer Should be= B
Hope this helps.
4 0
3 years ago
Read 2 more answers
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