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Mice21 [21]
3 years ago
8

CW: A sheet measures 20cm by 50cm. How many sheets

Mathematics
1 answer:
Oxana [17]3 years ago
4 0

Answer:

200 sheets are required

Step-by-step explanation:

We need to calculate the area of both the sheets and the wall

Mathematically,

area of a rectangle = l * b

Area of the sheet = 20 * 50 = 1,000 cm^2

100cm = 1 m

so the area of the wall is 400 by 500 = 200,000 m^2

To know the number of sheets, we now divide the area of the wall by that of the sheet

Mathematically, that will be;

200,000/1,000 = 200 sheets

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Identify the vertex of the quadratic function
Angelina_Jolie [31]

Answer:

(-2,-1)

Step-by-step explanation:

On the graph, the vertex is where the bottom of the U is. In general, it's always that same place on the U, but the U could be turned upside down or left or right. Looking at the bottom of the U, count on the x axis first (left 2, which is negative). That's your first number. Then count on the y axis (down 1, again, negative). That's your second number. Hope this helps!

5 0
3 years ago
Read 2 more answers
What is the answer to (5x20)-6
Zina [86]

Answer:

the awnser is 94 because 5×20=100-6=96

3 0
3 years ago
The length of a rectangle is 3 meter shorter than3 times its width.Find the length and width if the perimeter is 210 meters
Shkiper50 [21]

Answer:

length = 78 m , width = 27 m

Step-by-step explanation:

let w represent width then length l = 3w - 3

the perimeter (P) is calculated as

P = 2l + 2w = 210 , substitute values

2(3w - 3) + 2w = 210 ← distribute parenthesis and simplify left side

6w - 6 + 2w = 210

8w - 6 = 210 ( add 6 to both sides )

8w = 216 ( divide both sides by 8 )

w = 27 and l = 3(27) - 3 = 81 - 3 = 78

Then length = 78 m and width = 27 m

8 0
3 years ago
A baseball bat costs $41. This is $9 more than four times the wholesale cost of the bat.Find the bat's wholesale cost.
Lostsunrise [7]

We can find the bat's wholesale cost by working backwards -

Do $41 - 9 to get $32, then we can divide the 32 by the 4 to get $8.

Therefore, the wholesale cost of the bat is $8.


Happy to help!

7 0
2 years ago
Read 2 more answers
Please help! Late work!
frosja888 [35]
(40+41+41+45+48+48+49+49+49+40)/10 = 460/10 = 46

mean = 46
3 0
3 years ago
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