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3 years ago

Why does multiply numbers by 10 move the decimal point to the right but multiplying by 0.10 move the decimal point to the left

Mathematics

2 answers:

SSSSS [86.1K]3 years ago

8 0

Huh? I need more information

solmaris [256]3 years ago

7 0

There isn’t enough info in your question can you give an example ?

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How much is 3 3/5 x 2 3/8

ra1l [238]

Answer:

the answer is 8.55 or 8 and 11/20

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3 years ago

Jason is 4.52 feet tall. His sister is 0.75 times his height. How tall is his sister?

worty [1.4K]

7.91 feet tall.

4.52 x 0.75= 3.39
3.39 + 4.52 = 7.91

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3 years ago

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Bobby’s bedroom is 15 feet in length.how long is his bedroom on a scale drawing that uses a scale of 1/2 in = 3 feet

kolezko [41]

Answer:

2.5 or 2 1/2

Step-by-step explanation:

divide 15 by 3 and you'll get 5. multiply 1/2 by 5 and you get 2.5

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2 years ago

Which statement is true about the product of 0.031 and 0.31?

Sladkaya [172]

Answer:

I believe the answer is c

Sorry if it is wrong still looking for answer

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3 years ago

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A silo is not the shape of a cone. The silo is 8 meters tall and it's base has a diameter of 3 meters. Soybeans cost $414 per cu

Gnom [1K]

Answer:

$7803.72

Step-by-step explanation:

We have been given that a silo is in the shape of a cone. The silo is 8 meters tall and it's base has a diameter of 3 meters. Soybeans cost $414 per cubic meter. We are asked to find the total cost to fill the silo with soybeans.

First of all, we will find the volume of silo using volume of cone formula.

$\text{Volume of cone}=\frac{1}{3}\pi r^2 h$ , where,

r = radius

h = Height

We know that radius is half the diameter, so radius of silo would be $r=\frac{3}{2}=1.5$ .

$\text{Volume of cone}=\frac{1}{3}\pi (1.5\text{ m})^2 (8)\text{ m}$

$\text{Volume of cone}=\frac{1}{3}\pi\times 2.25\text{ m}^2 (8)\text{ m}$

$\text{Volume of cone}=\pi\times 0.75\text{ m}^2 (8)\text{ m}$

$\text{Volume of cone}=\pi\times 6\text{ m}^3$

$\text{Volume of cone}=18.8495559\text{ m}^3$

Now we will multiply total volume by $414 to find total cost.\

$\text{Total cost of soybeans}=\$414 \times 18.8495559$

$\text{Total cost of soybeans}=\$7803.7161426$

$\text{Total cost of soybeans}\approx \$7803.72$

Therefore, it will cost $7803.72 to fill the silo with soybeans.

5 0

3 years ago