How do you work out a ratio?
To work out the Ratio of something, you have to compare numbers or quantities in the same units. For e.g.
- 1m to 10cm, for this you first have to convert them so they become the same units, which will be
- 100cm to 10cm. Which is written as:
100:10 (100cm:10cm or 1m:10cm)
Asked in Physics, Comparisons
What is a quantity expressed as a percentage that measures the ratio of work output to work input?
What is the ratio of cement water and sand in r.c.c.?
Asked in Ratios (mathematical)
What is the ratio of work put out of a machine to the work put in is its?
Asked in Hair Dye
You don't understand how to work out the ratio of hair dye to peroxide?
Asked in Math and Arithmetic
How do you explain ratio?
a ratio is a comparison between 2 or more things. To work ratio out, it will be easier if you separate it into parts. if you was to work out the ratio of money, you would add the ratio together. whatever the number is you convert into money. you would then times it by the first number of the ratio which is the answer of the first of the first part, then you add it to the second number, and then that is the answer to the ratio problem. This is an example: if you had to work out £100 and the ratio was 8:2 this is how you would do it. first part you add the 8 and the 2 together which is 10, convert that into money it is £10 second part you times the 8 and the £10 together which is £80 third part you times the 2 and the £10 together which is £20 then you put it in ratio which is £80:£20
Asked in Physics
The ratio of useful work output to total work input is mechanical advantage?
Asked in Brazil, Ratios (mathematical)
What is the ratio of people who work in Brazil?
A ratio is a comparison of one number to another. The second number has not been specified in this question. The answer depends on what you want to compare to the number of people who work in Brazil. You will get different numbers if you want the ratio of people who work in Brazil to the number of: people who work in other countries, people who live in Brazil but don't (or cannot) work. people who cannot speak Portuguese but live in Brazil
Explain how the efficiency of an ideal machine compares with the efficiency of a real machine?
Efficiency is equal to the ratio of work input to work output; for an ideal machine this ratio is equal to 1 or 100%. For a real machine this ratio is always less than 1 because some of the work input is used to overcome mechanical friction within the machine which does not contribute to the work output of the machine.