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Mrac [35]
3 years ago
15

How many times greater is the value of the 4 in 400 than the value of the 4 in 40?

Mathematics
1 answer:
zzz [600]3 years ago
4 0

Answer:

10X greater.

Step-by-step explanation:

4 x 10 = 40  4 x 100 = 400   40 x 10 = 400  40 ten times is 400

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shtirl [24]

Let h,l, and w represent the height, length, and width of the building respectively

Then

\begin{gathered} h\text{ = }\frac{kl}{w} \\ \text{where k is the constant of proportionality} \end{gathered}\begin{gathered} \Rightarrow k=\frac{hw}{l} \\ \Rightarrow k=\frac{25\times5}{10}=12.5 \end{gathered}\Rightarrow h=\frac{12.5l}{w}

The new value of h = 50m, but l remains the same.

That is l = 10m

Therefore

\begin{gathered} \frac{50}{1}=\frac{12.5\times10}{w} \\ \Rightarrow\frac{50}{1}=\frac{125}{w} \\ \text{Cross multiplying, we have} \\ 50w\text{ = 125} \\ \Rightarrow\text{ w=}\frac{125}{50}=2.5 \end{gathered}

Hence, the width is 2.5m

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1 year ago
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Vanyuwa [196]
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4 0
4 years ago
Gideon is painting all sides of a square pyramid-shaped decoration at the top of his fence post. A net of the decoration is show
frez [133]
Gideon is painting all sides thus we find the overall area of the square pyramid given in the picture. A square pyramid is a polyhedron that consists of a square and 4 triangles. To solve the area that Gideon will have to paint, we can calculate the area of the square and the area of the triangles then add these two values of area. We proceed as follows:
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We then add the two areas,
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6 0
3 years ago
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IrinaVladis [17]

Answer:

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Step-by-step explanation:

5 0
3 years ago
PLEASE HELP ME!!!!!!
Sauron [17]

Answer:

50.24

Step-by-step explanation:

pi times r^2

7 0
4 years ago
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