5 Minute Check
Complete on the back of your homework.
An African elephant eats 400 lbs of vegetation each day.
1. Write an equation to find v, the number of pounds the
elephant eats in d days.
2. Make a table to show the relationship between the
number of pounds v the elephants eats in d days.
3. List the ordered pairs for the first three days.
4. If the ordered pairs were graphed, would it be linear?
5 Minute Check
Complete on the back of your homework.
An African elephant eats 400 lbs of vegetation each day.
1. Write an equation to find v, the number of pounds the
elephant eats in d days.
5 Minute Check
Complete on the back of your homework.
An African elephant eats 400 lbs of vegetation each day.
1. Write an equation to find v, the number of pounds the
elephant eats in d days.
v = 400d
5 Minute Check
Complete on the back of your homework.
An African elephant eats 400 lbs of vegetation each day.
2. Make a table to show the relationship between the
number of pounds v the elephants eats in d days.
5 Minute Check
Complete on the back of your homework.
An African elephant eats 400 lbs of vegetation each day.
2. Make a table to show the relationship between the
number of pounds v the elephants eats in d days.
5 Minute Check
Complete on the back of your homework.
An African elephant eats 400 lbs of vegetation each day.
3. List the ordered pairs for the first three days.
5 Minute Check
Complete on the back of your homework.
An African elephant eats 400 lbs of vegetation each day.
3. List the ordered pairs for the first three days.
(1, 400), (2, 800), (3, 1200)
5 Minute Check
Complete on the back of your homework.
An African elephant eats 400 lbs of vegetation each day.
4. If the ordered pairs were graphed, would it be linear?
5 Minute Check
Complete on the back of your homework.
An African elephant eats 400 lbs of vegetation each day.
4. If the ordered pairs were graphed, would it be linear?
Yes
Flashcards
Wednesday, Jan 29
Chapter 8.5
Inequalities
Inequalities
Objective: To solve inequalities using mental
math and the guess, check and revise method.
Inequalities
At the end of this lesson you should be able
to answer the following question.
How can mental math help you find solutions
to inequalities?
Inequalities
An inequality is a mathematical sentence that
compares quantities.
Inequalities
This symbol means what?
>
Inequalities
This symbol means what?
> means greater than
This symbol means what?
<
Inequalities
This symbol means what?
> means greater than
This symbol means what?
< means less than
Inequalities
This symbol means what?
>
Inequalities
This symbol means what?
> means equal to or greater than
Inequalities
This symbol means what?
> means equal to or greater than
This symbol means what?
<
Inequalities
This symbol means what?
> means equal to or greater than
This symbol means what?
< means equal to or less than
Inequalities
Give an example if a number less than 5.
Inequalities
Give an example if a number less than 5.
Any number that is to the left 5, is less than 5.
Inequalities
Of the numbers 6, 7, or 8, which is the solution
for the inequality f + 2 < 9?
To solve this, substitute 6,7, and 8 for the
variable f to make a true statement.
Inequalities
Of the numbers 6, 7, or 8, which is the solution
for the inequality f + 2 < 9?
To solve this, substitute 6,7, and 8 for the
variable f to make a true statement.
6 + 2 < 9; 6 is the only solution.
Inequalities
Of the numbers 8, 9, or 10, which is the
solution for the inequality n -3 > 6?
Do this on your own.
Inequalities
Of the numbers 8, 9, or 10, which is the
solution for the inequality n -3 > 6?
10 – 3 > 6
7>6
7 is the only solution.
Inequalities
Is the given value a solution for the inequality?
x + 3 > 9; x = 4
Do this on your own.
Inequalities
Is the given value a solution for the inequality?
x + 3 > 9; x = 4
4+3>9
7>9
4 is not a solution.
Inequalities
Is the given value a solution for the inequality?
12 < 18 - y; y = 6
Do this on your own.
Inequalities
Is the given value a solution for the inequality?
12 < 18 - y; y = 6
12 < 18 - 6
12 < 12
6 is a solution.
Inequalities
Is the given value a solution for the inequality?
17 > 11 + x; x = 8
Do this on your own.
Inequalities
Is the given value a solution for the inequality?
17 > 11 + x; x = 8
17 > 11 + 8
17 > 19
8 is not a solution.
Inequalities
Lisa works at a gift shop. She receives a bonus if she makes
more the 20 balloon bouquets a month. Which months did
she receive her bonus? Use the inequality b > 20, where b
equals the number of balloon bouquets made each month to
solve.
Do this on your own.
Inequalities
Lisa works at a gift shop. She receives a bonus if she makes
more the 20 balloon bouquets a month. Which months did
she receive her bonus? Use the inequality b > 20, where b
equals the number of balloon bouquets made each month to
solve.
Since 25 > 20 and 32 > 20,
She received the bonus in July and
October.
Inequalities
If the bakery sells more than 45 bagels in a day, they make a
profit. Use the inequality b > 45 to determine which days
the bakery made a profit.
Do this on your own.
Inequalities
If the bakery sells more than 45 bagels in a day, they make a
profit. Use the inequality b > 45 to determine which days
the bakery made a profit.
Since 50 > 45 and 48 > 45;
They made a profit on Friday and Saturday.
Inequalities
Agenda Notes
Homework –
Homework Practice 8-5
Due Thursday, Jan 30
Chapter 8 Test –Monday, Feb 3