# Tutor profile: Nicholas L.

## Questions

### Subject: Pre-Algebra

Which algebraic expression correctly represents this phrase? Twenty-five less than three times a number. A.) 25 - 3x B.) 3 - 25x C.) 3x - 25

The correct answer is C. First, the question says "Twenty-Five Less Than". This means you will need to subtract 25 from everything else. Seconds, the question says "Three Times a Number". Since it does not give you a specific number, we use "x" as our variable. Since the variable is "Three Times", we have to multiply that by 3, giving us 3x.

### Subject: Basic Math

Express the ten thousandths place in 8.26497.

The Ten Thousandths place in the example above would be represented by "9". Looking after the decimal point, the "2" is in the Tenths place, the "6" is in the Hundredths place, the "4" is in the Thousandth's place, and the "9" is in the Ten Thousandths place.

### Subject: Industrial Engineering

What is a Bottleneck?

A Bottleneck is a machine/station that is the slowest in the entire system. The Bottleneck controls the output, even if there is overspeed elsewhere. Think of it as an hourglass. Only so much can fit through the middle.

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