At a special sale, all pens are sold at one price and all pencils at anothes price. If 3 pens and 2 pencils are sold for 47¢, while 2 pens and 3 pencils arc sold for 38¢, what is the cost of a set of one pen and one pencil, in cents? dsion E Olympiads

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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.