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.
As needed, set up a guess-and-check table to build equations.
An ounce of macadamia nuts (salted and roasted in oil) contains 222 calories. There are twice as many grams of carbohydrates as protein. The total weight of the protein, fat, and carbohydrates is 28 grams. Protein and carbohydrates have 4 calories per gram, and fat has 9 calories per gram. How many grams are there each of carbohydrates, fat, and protein?
| carbohydrates | g | |
| fat | g | |
| protein | g |
2) What is the sum of the first 20 terms of the arithmetic sequence? (If the sequence is not arithmetic, enter NA.)
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