EOC FLASHCARD 2

Front

What is the formula to calculate speed?

Back

Speed = Distance / Time

Front

If a car travels 120 miles in 3 hours, what is its speed?

Back

Speed = 120 miles / 3 hours = 40 miles per hour.

Front

How do you determine if two ratios form a proportion?

Back

Two ratios form a proportion if their cross products are equal.

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

If 16/9 and 9/6 are compared, do they form a proportion?

Back

No, they do not form a proportion.

Front

If 7/3 and 14/6 are compared, do they form a proportion?

Back

Yes, they form a proportion.

Front

What is the cross product of the ratios a/b and c/d?

Back

The cross product is ad and bc.

Front

If x/4 = 3/12, what is the value of x?

Back

x = 4 * (3/12) = 1.

Front

What is the definition of a ratio?

Back

A ratio is a comparison of two quantities by division.

Front

If a ratio is 5:8, what does it represent?

Back

It represents that for every 5 parts of one quantity, there are 8 parts of another.