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jasenka [17]
4 years ago
5

A pound of sand will spread over four square feet. How many pounds of sand would be needed to cover a sandbox that has a width o

f 8 feet and length of 10 feet
Mathematics
1 answer:
Tju [1.3M]4 years ago
4 0
20 pounds of sand will be required to cover a sandbox with a W of 8 and a L or 10.

To solve this question, first we calculate the area of the sandbox (A=LW)(8*10=80). If our sandbox requires 80 square feet of sand, then all we need to do is divide our area by the amount of square feet one pound of sand covers. (80/4=20). This means that it would require 20 pounds of sand to cover our 80 square foot sandbox.
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12y(5y-7)(4y+9)=0<br> please show step by step to solve
Tcecarenko [31]

Answer:

y=0,y=7/5,y=-9/4

Step-by-step explanation:

12y(5y-7)(4y+9)=0

Using the zero product property

12y =0   (5y-7) =0  (4y+9)=0

12y/12 =0/12      5y-7 +7 =0+7     4y+9-9=0-9

y =0                        5y = 7               4y = -9

                              5y/5 = 7/5        4y/4 =-9/4

                                y = 7/5              y =-9/4

3 0
3 years ago
Read 2 more answers
A chemist is conducting an experiment which involves a certain chemical reaction. He begins the experiment with 666 milliliters
Ket [755]

Answer:

8 Minutes

Step-by-step explanation:

since we are trying to find how many minutes have passed we first need to find how much substance was used during the time. we can do that by subtracting the leftover substance from the amount we started with.

666-562 = 104

Now that we know how much substance was used we can then use our conversion rate (13 per minute) and find how many minutes have passed by dividing.

104 / 13 = 8

4 0
3 years ago
Find the area of the regular polygon​
gregori [183]

Answer:To find the area of a regular polygon, all you have to do is follow this simple formula: area = 1/2 x perimeter x apothem. Here is what it means: Perimeter = the sum of the lengths of all the sides. Apothem = a segment that joins the polygon's center to the midpoint of any side that is perpendicular to that side.

Step-by-step explanation:

hope this helps

plez mark as brainlyest

8 0
3 years ago
Help i am in need of help fast pls
mr_godi [17]

Roxy: 42/9 = 4.67

Jordan: 79/18 = 4.39

Rickie: 123/27 = 4.56


Jordan has the lowest number of strokes per hole


Answer

Jordan

3 0
3 years ago
Read 2 more answers
Which represents the inverse of the function f(x)=4x?
Juliette [100K]

Answer:

h(x) = \frac{1}{4}x

Step-by-step explanation:

Suppose h is the inverse of f then

f(x) = y ⇔ h(y) = x

f(x) = y ⇔ 4x = y ⇔ x = y/4

and since x = h(y) then h(y) = y/4

then we can write :

h(x) = \frac{x}{4}

______________________

:)

8 0
3 years ago
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