|
Solve for the
indicated variable in questions 1 - 5:
| 1. Solve
for p: |
|
|
| 2. Solve
for y: |
xy - d = m
|
|
| 3. Solve
for y: |
|
|
| 4. Solve
for w: |
V = l w h
|
|
| 5. Solve
for w: |
P = 2l
+ 2w
|
|
6.
Lightning quickly heats the
air causing it to expand, which produces the sound of thunder. Sound
travels approximately 1 mile in 5 seconds. Knowing D
= rt, how far away is a thunderstorm when you notice a
3-second delay between the flash of lightning and the sound of thunder? (D = distance,
r = rate, t =
time)
|
7.
|
Your school is ordering computer
equipment. Let c represent the cost of one personal
computer and
p
represent the cost of one printer. |
 |
a.
Write an expression for the total cost
of 15 personal computers and 8 printers.
b. The school discovers that it needs 8 additional
computers and 4 additional
printers. Write an expression for the total cost of this additional
equipment.
c.
Write an expression that will
represent the total amount of money spent on computer equipment.
|
8. |
 |
Bryan and
Nate are dirt bike racers and are brothers.
Bryan gives his younger brother, Nate, a 60 meter head start
during a practice run. |
After t seconds, Nate is a distance 6t
+ 60 from the starting line and Bryan is a distance of 7t from the starting line.
a.
How
far ahead of Bryan is Nate after t seconds?
|
|
b.
Evaluate the answer for part
a
when:
|
1.) t = 15 |
|
|
2.) t = 30 |
|
|
3.) t = 45 |
|
c.
Does
Bryan ever catch up with Nate? If so, after how many seconds?
|
|
