B ELL R INGER If I have 50 tootsie rolls, and I ate 10, how many would each of my 5 friends get if I...
-
Upload
prosper-alban-logan -
Category
Documents
-
view
213 -
download
0
Transcript of B ELL R INGER If I have 50 tootsie rolls, and I ate 10, how many would each of my 5 friends get if I...
BELL RINGER
If I have 50 tootsie rolls, and I ate 10, how many would each of my 5 friends get if I separated them equally?
Cara is eight years older than Chuck. In five years, Cara will be twice as old as Chuck. How old is each?
STEP 1
Read and reread the question. Questions to ask yourself:
What do you know?What are you looking to find out?What types of operations are we using?
Cara is eight years older than Chuck. In five years, Cara will be twice as old as Chuck. How old is each?
Cara is eight years older than Chuck. In five years, Cara will be twice as old as Chuck. How old is each?
a = the age of Cara
Cara is eight years older than Chuck. In five years, Cara will be twice as old as Chuck. How old is each?
WHO NOW IN 5 YEARS
STEP 4
Write out an equation to represent the problemKeep in mind:
What is my variable representing?What operations are necessary?Does this make sense?
Cara is eight years older than Chuck. In five years, Cara will be twice as old as Chuck. How old is each?
WHO NOW IN 5 YEARS
Cara is eight years older than Chuck. In five years, Cara will be twice as old as Chuck. How old is each?
WHO NOW IN 5 YEARS
EXAMPLE:COINS
Dave has 15 coins (a nickels and quarters).
He has 4 times as many nickels as quarters.
How many of each coin does he have?
Coin Number
EXAMPLE: CONSECUTIVE NUMBERS
When 3 consecutive numbers are added together, the result is 72. What is the middle number?
Consecutive Integer Algebraic Expression
EXAMPLE
Dan bought 4 new baseball trading cards to add to his collection. The next day his dog ate half of his collection. There are now only 38 cards left. How many cards did Dan start with?
EXAMPLE
Dan bought 4 new baseball trading cards to add to his collection. The next day his dog ate half of his collection. There are now only 38 cards left. How many cards did Dan start with?
STEP 5
Write out the proper answer: You need to express your answer appropriately Write a short sentence expressing your answer in
terms of the variable.
EXAMPLE
Dan bought 4 new baseball trading cards to add to his collection. The next day his dog ate half of his collection. There are now only 38 cards left. How many cards did Dan start with?
EXAMPLE (FINDING CONSECUTIVE NUMBERS)
The sum of 3 consecutive numbers is 33. What are the 3 numbers?
EXAMPLE 2 (FINDING CONSECUTIVE SUMS)
The sum of 3 consecutive even numbers is 30. Determine the 3 consecutive even numbers.