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Transcript
```Shaw’s Grade 9
Equations and
Inequalities
JEOPARDY
Define
Time
Whole # or
Fraction
Equation
\$200
Wordy
Expedition
Inevitable
Inequalities
Wonders
\$200
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Potpourri
This does not change the
value of the original
term. Ex: 5+0 = 5 or
4 x1 = 4.
A statement formed by
two expressions
related by an equal
sign.
A mathematical
operation that undoes a
related operation.
A mathematical
statement that shows an
inequality or equation
and the family of
numbers to which the
variable belongs.
A mathematical
statement relating
expressions by using
one or more symbols
not including “=“.
3x+7=5.
4x-16=32.
5(y-3)=30.
x/3+9=36.
3(4y-6)=47.
Solve:
3x+4=13.
Solve:
1/3x+5=9.
Solve:
3/4x+2=2/3.
.
.
2y+3>7.
15<4+3x.
2x+7 ≤ 5x+28.
2( x+4 ) > 6( x-12 ).
9( y-2 ) ≥ 6( y+3 ) - 9.
The class attends an
opening of a movie. The
bill for the 30 students is
\$152.50 including a \$25
surcharge. How much does
1 ticket cost?.
Suzanne is 3 times older
than Dawn. Carlos is 5
years younger than Dawn.
The sum of their ages is 75.
Solve an equation to find
each persons age.
The perimeter of a triangle is
93 centimeters. The diagonal of
a triangle is twenty-five
centimeters more than its
height. The base of the triangle
is seventeen centimeters more
than its height. What are the
dimensions of the triangle? .
Cellular phone companies often package their
products to make them more attractive to potential
users. If you average 356 minutes per month in talk
time, which package is the better deal.
Package A includes a free phone and 300 minutes. It
will cost 0.12 per minute for each minute over the
plan time. Package A has a base rate of \$39.95.
Package B has a phone that costs \$10 and has 350
minutes of time and 0.08 per minute for each
minute over the plan time. Package B has a base
rate of \$35.95 not including the phone. .
Kim and Cyndi are starting a
business tutoring students in
math. They rent an office for
\$400 per month and charge \$40
per hour per student. If they
have 15 students each for one
hour per week how much profit
do they make together in a
month? (assume 4 weeks per
month) .
Allison is 4 years older
than her sister. How old
are they if the sum of their
ages is greater than 12?
(Create an inequality and
solve) :
A rectangle has a perimeter of
at least 46 cm. Its base
measures 5 cm more than its
height. What are the
minimum dimensions? Is this
question modelled by an
equation or an inequality? .
The perimeter of an isosceles
triangle is 23 cm. The base is 4
cm less than one of its other
sides. What are the dimensions
of the triangle?.
Solve.
15x – 7x = –52 – 5x.
Solve the equations represented
by the tile models:
1
x
x
x
x
x
x
x
x
1
1
1
1
1
1
1
Thanks for playing
Shaw’s Fluids
Jeopardy!
The states in which fluids
come in.
```
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