Answer:
3.16
Step-by-stepp explanation:
The volume of a cylinder is given by the expression:
V = πr²h ----------*
314cm³ = 22/7 X r² X 10cm
314cm³ = 220/7 X r²
r² = 314 X 7 ÷ 220
r² = 2198 ÷ 220
r² = 9.99
r =√9.99
r = 3.16
Hence the radius of the cylinder is 3.16
Answer:
about 11 times
Explanation: 120- 49.95= 70.5
70.5÷ 5.95= 11.7
The properties of multiplication and division are an easier way when making calculations.
Let's see an example for each one.
Mutiplication:
Suppose we are going to multiply:
It is easier to make the product using the distributive property:
Division:
Suppose we have the following division:
By properties of the division, we know that this division is not defined.
Therefore, when we see a division between 0, we know that the answer is that it is not defined.
Answer:
The rules of multiplication and division help to divide and multiply in a faster way.
Using proportions, it is found that the number of books that was left over was of 505.
<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount, and the measures are related using a rule of three.
The number of books received by Marie is given by:
M = 772 - 345 = 427.
Melanie received one-sixth of Marie, hence:
Me = 427/6 = 71.
The total amount is 25 times Melanie's amount, hence:
T = 25 x 71 = 1775.
The amount left over is:
L = 1775 - (772 + 427 + 71) = 505
More can be learned about proportions at brainly.com/question/24372153
#SPJ1