Transcript Chapter 3 Review

A
B
Definitions
Solving
1
2
3
1
2
3
C
Formulas
1
2
3
D
Functions
1
2
3
E
Rate/Ratio
1
2
3
A1
Each time you apply a solution step to
an equation, you are writing a
_______________.
A2
An algebraic equation that relates two
or more real-life quantities is a
_______________.
A3
A ___________ is used to compare
two quantities with different units, such
as miles per hour.
B1
Solve the equation.
y – 15 = – 4
B2
Solve the equation.
9( - 5 – r) = -10 – 2r
B3
Solve the equation.
0.9m + 2.4 = - 0.3m
C1
Use the formula for the area of a
rectangle, A = lw, to find a formula
for l in terms of A and w.
C2
In the equation S = 2rh solve for h.
C3
What is the formula to find the
temperature in Fahrenheit?
C = 5 (F – 32)
9
D1
Rewrite the equation so that y is a
function of x.
2x + y = 5
D2
Rewrite the equation so that y is a
function of x.
2x + 2y = 10
D3
Rewrite the equation so that y is a
function of x.
3x + 5y = 7
E1
You earn $210 in 40 hours. At this rate,
how much do you earn in 55 hours?
E2
You are visiting Mexico and you want
to exchange $180 for pesos. The rate
of currency exchange is 9.990 pesos
per United States dollar. Find out how
many pesos you will receive.
E3
The two triangles are similar. Find the
length of the side marked x.
x
8
9
6
A1
Each time you apply a solution step to
an equation, you are writing a
transformation.
A2
An algebraic equation that relates two
or more real-life quantities is a
formula.
A3
A unit rate is used to compare
two quantities with different units, such
as miles per hour.
B1
Solve the equation.
y – 15 = – 4
y = 11
B2
Solve the equation.
9( - 5 – r) = -10 – 2r
r=-5
B3
Solve the equation.
0.9m + 2.4 = - 0.3m
m=-2
C1
Use the formula for the area of a
rectangle, A = lw, to find a formula
for l in terms of A and w.
l=
A
w
C2
In the equation S = 2rh solve for h.
h
=
S
2r
.
C3
What is the formula to find the
temperature in Fahrenheit?
C = 5 (F – 32)
9
F = 9 C + 32
5
D1
Rewrite the equation so that y is a
function of x.
2x + y = 5
y = 5 – 2x
D2
Rewrite the equation so that y is a
function of x.
2x + 2y = 10
y=5-x
D3
Rewrite the equation so that y is a
function of x.
3x + 5y = 7
y=7–3x
5 5
E1
You earn $210 in 40 hours. At this rate,
how much do you earn in 55 hours?
$288.75
E2
180 dollars to pesos?
Rate of currency exchange = 9.990 pesos
1798 pesos
1 dollar
E3
The two triangles are similar. Find the
length of the side marked x.
x
8
9
x = 12
6