1st Semester Study Guide

Front

What is the formula to calculate the time taken to reach a certain height on an escalator?

Back

Time = (Height above ground) / (Rate of ascent)

Front

If a shark swims at a speed of 18 miles per hour, how do you express the distance it swims in x hours?

Back

Distance = Speed × Time, so Distance = 18x.

Front

What is the formula for the area of a rectangle?

Back

Area = Length × Width.

Front

How do you find the width of a rectangle if you know the area and length?

Back

Width = Area / Length.

Front

What is the least common multiple (LCM) and how is it used in scheduling problems?

Back

LCM is the smallest number that is a multiple of two or more numbers, used to find when events coincide.

Front

How do you calculate the LCM of 18 and 14?

Back

LCM(18, 14) = 126.

Front

What is the result of dividing 6,048 by 4?

Back

1,512.

Front

What is the concept of rate in mathematics?

Back

Rate is a ratio that compares two quantities with different units, such as speed (distance/time).

Front

How do you convert a word problem into a mathematical expression?

Back

Identify the quantities involved and their relationships, then translate them into an equation.

Front

What is the significance of units in measurement?

Back

Units provide context to a number, indicating what is being measured (e.g., feet, miles, minutes).