- Step 1: To calculate your interest rate, you need to know the interest formula I/Pt = r to get your rate. …
- I = Interest amount paid in a specific time period (month, year etc.)
- P = Principle amount (the money before interest)
- t = Time period involved.
- r = Interest rate in decimal.
What is the formula for rate of reaction?
The rate of a chemical reaction can also be measured in
mol/s
. For example, if two moles of a product were made during ten seconds, the average rate of reaction would be 2 ÷ 10 = 0.2 mol/s.
How do you do rates in math?
You can write any rate as
a unit rate by reducing the fraction so it
has a 1 as the denominator or second term. As a unit rate example, you can show that the unit rate of 120 students for every 3 buses is 40 students per bus. You could also find the unit rate by dividing the first term of the ratio by the second term.
What is the ratio of 2 to 5?
2:5 in decimals is
0.4
. A rate is a little bit different than the ratio, it is a special ratio.
How do I calculate a rate?
However, it’s easier to use a handy formula:
rate equals distance divided by time: r = d/t.
What is a per unit rate?
A unit rate is
a rate with 1 in the denominator
. If you have a rate, such as price per some number of items, and the quantity in the denominator is not 1, you can calculate unit rate or price per unit by completing the division operation: numerator divided by denominator.
What is the average rate of reaction?
The average rate of reaction is an average rate,
obtained by taking the change in concentration over a time period
. The rate at which chemical substances react varies greatly. Usually, a reaction rate involves the change in the concentration of a substance over a given period of time.
What is unit of rate of reaction?
Reaction rates are usually expressed as the concentration of reactant consumed or the concentration of product formed per unit time. The units are thus
moles per liter per unit time
, written as M/s, M/min, or M/h.
What does a 5 to 1 ratio mean?
That “
magic ratio
” is 5 to 1. This means that for every negative interaction during conflict, a stable and happy marriage has five (or more) positive interactions. … This means that for every negative interaction during conflict, a stable and happy marriage has five (or more) positive interactions.
What is the ratio of 3 to 5?
If put this into a calculator (3 divided by 5), you will get a decimal of
0.6
as the answer. This means that any two numbers that divide and come to the same answer are equivalent to 3/5.
What is the ratio of 2 to 4?
Note that the ratio 2 to 4 is said to be equivalent to the ratio 1 to 2, that is
2:4 = 1:2
. Note also that a fraction is a number that stands for “part of something”, so although this ratio can be expressed as a fraction, in this case it does NOT represent “part of something”.
What is the formula for total cost?
The formula to calculate total cost is the following:
TC (total cost) = TFC (total fixed cost) + TVC (total variable cost).
What is the formula for unit rate?
To find the unit rate,
divide the numerator and denominator of the given rate by the denominator of the given rate
. So in this case, divide the numerator and denominator of 70/5 by 5, to get 14/1, or 14 students per class, which is the unit rate.
How do you convert rates?
The conversion rate is
the number of conversions divided by the total number of visitors
. For example, if an ecommerce site receives 200 visitors in a month and has 50 sales, the conversion rate would be 50 divided by 200, or 25%.
Why do we calculate the average rate?
Calculating an average rate
shows the amount of change of one variable with respect to another
. The other variable is commonly time and could describe the average change in distance (speed) or chemical concentrations (reaction rate).
