Ratios (6) Flashcards Preview

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Flashcards in Ratios (6) Deck (9)
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1
Q

Ratios can be expressed as a…

A

Equation. Ax + Bx = total

2
Q

Beware…

A

When using fraction ratio, you need to include both fractions as the total. 2/5 children to adults is a ratio of 29%, not 40%

3
Q

Ratios are good…

A

Multiplication/division tools, not as much addition and subtraction

4
Q

Always ____ a DENOMINATOR with a radical sign

A

Rationalize…multiply by 1

5
Q

When solving for actual numbers…

A

Must incorporate the scaling factor. A ratio of 3/5 boys to girls doesnt mean 8 kids. Could mean 6 and 10, etc.

6
Q

Multiplying or dividing ratios…

A

Easy to tell what the new ratio will be.

7
Q

Adding and subtracting ratios…

A

Need more info to determine the impact (remember the scaling factor).

8
Q

Ratios are good candidates for…

A

Backsolving

9
Q

Ratio of 2:1 means…

A

The number must be a multiple of 3