What does the expression 0.90 (d-5) refer to how do you know how else could this expression be written?

Answer 1

The expression \(0.90(d - 5)\) typically refers to a value that is 90% of the quantity represented by \(d - 5\). In this context, \(d\) could represent a variable or a specific measurement, and the term \((d - 5)\) indicates that you are subtracting 5 from that variable before taking 90% of the result.

To understand this expression better, you can rewrite it in a few alternative forms:

1. Distributing the 0.90: \[ 0.90(d - 5) = 0.90d - 0.90 \times 5 = 0.90d - 4.5 \]

2. Fractional form: \[ 0.90(d - 5) = \frac{9}{10}(d - 5) \]

3. In terms of decimals: You can leave it as is or convert it to a more straightforward mathematical representation depending on the context in which you are working.

Each of these forms represents the same concept, but they may be more useful in different scenarios depending on what you are trying to accomplish with the expression.