Math

QuestionCreate an algebraic expression for "18 minus 3 times dd".

Studdy Solution

STEP 1

Assumptions1. "18 decreased by" means we start with the number18 and then subtract from it. . "3 times dd" means we multiply3 by the variable dd.

STEP 2

First, we need to write the expression for " times dd". In algebra, multiplication is often denoted by simply placing the numbers or variables next to each other. So " times dd" can be written as dd.
×d=d \times d =d

STEP 3

Now, we need to write the expression for "18 decreased by3 times dd". In algebra, "decreased by" means subtraction. So we start with18 and then subtract 3d3d.
18decreasedby3d=183d18\, decreased\, by\,3d =18 -3dThe algebraic expression for "18 decreased by3 times dd" is 183d18 -3d.

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