Answer :
If you multiply a certain number by 2.5, add 1.7 the expression is as follows:
2.5x + 1.7
Variables:
Variables are letters use to represent numbers in a mathematical expression.
Therefore,
let the certain number = x
The certain number is multiplied by 2.5.Therefore,
- 2.5 × x = 2.5x
Then , we add 1.7 to the product of 2.5 and x. Therefore,
- 2.5x + 1.7
The final expression is as follows:
- 2.5x + 1.7
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