june 4, 2015
TRANSCRIPT
Today: Review for Final Exam
June 14, 2015
Warm-Up Section of Notebook
1.
π±=Β±πβπ
Final Exam Review:
Final Exam Review:
Rational Expressions vs. Equations
Rational Expressions Rational Equations
and,
finally
(5, 4) (4, 6)
If one of the coordinates is missing, and the distance is given, the result will be a quadratic equation
x = 5 Β±35
Distance & Mid-Point
Radical Operations & Equations
Last week a store sold six more than three times the number of CDβs sold this week. A total of 110 CDβs were sold during the two weeks.
What is the best method to use to solve this system of equations?l + t = 110; l =
3t + 6 this week: 26; last week: 84
Let βtβ represent this week and βlβ represent last week.
Systems of Equations
Inequalities
Write the inequality shown below:
3 2x 7 13-2 x8 4x
x < - 2
||
2 0
Solve & Graph
Use the Standard Form of the equation.
Answer in reduced fraction form: What is 22% of ?
Fractions, Decimals, Percent
y > Β½x - 3
Final Exam Review:
Word Problems:Mixture, Coin, Work,
Distance
Mixture Type Problems
A store mixes some candy worth $3.50 a pound with other candy costing $1.00/lb. There are 10 more pounds of the cheaper candy than the more expensive one. The total value of the mixture is $28. How many pounds of each type of candy are there? What is the per pound cost of the new candy mix?
Expensive
$3.50/ lb x lbs.
3.5x
Cheaper
$1.00/ lb x + 10
lbs.1(x + 10)
Mix
+ =
3.5x + 1.0x +10 = 28
x = 4; x + 10 = 14
$28
Mixture Type Word Problems:
Mixture Type Word Problems:
Redtop
$9.50/ lb 40 lbs. $9.50(40)
Mixture
$10.50/ lb 60 lbs. $10.50(60)
Bluegrass
x
100 lbs.
100x
$9.50(40) + $10.50(60) = 100x
x = $10.10
Gourmet
$8.00/ lb
10 lbs. $8.00(g)
$6.00/ lb
Regular
$6.75/ lb
g lbs. (10 - g) lbs. $6.00 (10 -
g)
Mixture
$6.75(10)
g = 3.75; r = 6.25
+ =
Class Work: See Handout
A rescue helicopter and an ambulance are both traveling from the scene of an accident to the hospital. Each grid line is 1 mile; the solid line represents the ambulance, the dotted line, the helicopter.
How far did each travel?