12/6 Classwork

Front

What is the formula to calculate the rate of speed?

Back

Speed = Distance / Time

Front

If the ratio of boys to girls is 3:4 and there are 21 boys, how do you find the number of girls?

Back

Set up a proportion: 3/4 = 21/x, then solve for x.

Front

How do you convert feet to yards?

Back

Divide the number of feet by 3, since 1 yard = 3 feet.

Front

What does 'increase' mean in mathematical terms?

Back

To add to a number or quantity.

Front

What does 'difference' mean in mathematics?

Back

The result of subtracting one number from another.

Front

What is the perimeter of a rectangle?

Back

Perimeter = 2(length + width).

Front

How do you find the average speed of an object?

Back

Average Speed = Total Distance / Total Time.

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, showing the relative size of one quantity to another.

Front

What is the meaning of 'subtract' in math?

Back

To take one number away from another.

Front

How do you solve for an unknown in a proportion?

Back

Cross-multiply and then divide to find the unknown.