Lesson 3: Practice Problems
Problem 1
In this hanger, the weight of the triangle is
Write an equation using
and to represent the hanger. If
is 6, what is ?
Problem 2
Andre and Diego were each trying to solve
The result of Andre’s first step was
. The result of Diego’s first step was
.
Problem 3 From Unit 3 Lesson 11
Complete the table with values for
or that make this equation true: . Create a graph, plot these points, and find the slope of the line that goes through them.
Problem 4
Match each set of equations with the move that turned the first equation into the second.
Multiply both sides by
Multiply both sides by
Multiply both sides by
Add
to both sides Add
to both sides
Problem 5
Select all the situations for which only zero or positive solutions make sense.
Measuring temperature in degrees Celsius at an Arctic outpost each day in January.
The height of a candle as it burns over an hour.
The elevation above sea level of a hiker descending into a canyon.
The number of students remaining in school after 6:00 p.m.
A bank account balance over a year.
The temperature in degrees Fahrenheit of an oven used on a hot summer day.