ALGEBRA UNIT 3
1)
HW DAY 9 LITERAL EQUATIONS
Steve’s pets world sells aquariums that are rectangular prisms. The volume V of
an aquarium is given by the formula V=Lwh where L is the length, w is the width,
and h is the height.
Solve the formula for h.
Use the rewritten formula to find the height of the
aquarium shown, which has a volume of 5850 cubic
inches.
In #’s 2-4 Solve for y in terms of x.
2)
x  7y  0
3)
5)
The formula for the volume of a pyramid is v 
3 x  2y  18
of B and V?
1
VB
3
3V
(2) h 
B
(1) h 
6)
If w 
(3) h 
V
3B
(4) h  3VB
2x  y
, solve for y in terms of r, w, and y.
r
4)
4y  x  20  y
1
Bh . What is h expressed in terms
3
7)
A formula is expressed as D  a(2  kx) . Express k in terms of D, a, and x.
8)
For the equation
9)
If k  am  3mx , solve for m in terms of a, k, and x
10)
Mr. Stanton asked his students to write an algebraic expression on a piece of
paper. He chose four students to go to the board and write their expression.
r
 x  w , solve for r in terms of w and x.
3
Robert wrote:
4(2 x  5)  17
Meredith wrote:
3y  7  11z
Steven wrote:
9w  2  20
Cynthia wrote:
8  10  4  12
Which student wrote an algebraic expression? Explain your reasoning.
11)
A method for solving 5(x  2)  2(x  5)  9 is shown below. Identify the property
used to obtain each of the two indicated steps.