The time t (in hours) it takes a group of workers to build a cabin varies inversely with the number n of workers. It takes 12 workers 15 the cabin. What is the constant of variation? 180 Write the particular equation expressing the time it takes in terms of the number of workers? 25 How long will it take to build a cabin if there are 20 workers? hours How many workers will they need if they want to finish in 6 hours? 30 workers : 0.033 : 0.04 : 0.0625 : 0.208 : 4.8 : 7.5 : 9 : 16 : 25 : 30 :: : t= n : t= n :: 3600 180 : t= 4n : t= 180n 1 2. 3 ::
Percentage
A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.
Algebraic Expressions
In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.
Numbers
Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.
Subtraction
Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.
Addition
Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
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