Ivan has a small birdbath in his backyard that has been warmed by the sun. He thinks the water is too warm and wants to cool the temperature down using ice cubes. He knows that each ice cube will lower the temperature of the birdbath by 3 degrees. He decides to add 7 ice cubes to the birdbath. What integer will represent the change in the birdbath's water temperature after adding the ice cubes?
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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