reading percentages
What does percent stand for?
Per 100
If there are 40 students on a field trip to a zoo, 20 of them love the zoo. What percentage of students love the zoo?
50%
x + 20 = 92
x = 72
What is the inverse operation of addition?
Subtraction
What is harder to catch the faster you run?
Your breath
What percentage is the same as a quarter (1/4)?
25%
There are 36 carpenters in a crew. On a certain day, 27 were present. What percentage of the crew was present?
75%
y - 65 = 70
y = 135
What is the inverse operation of multiplication?
Division
What has many keys but can't open locks?
Piano
If there is a 1% chance that it will rain today, what is the chance that it will stay dry?
99%
Susie got 18 out of 20 questions correct on a quiz. What percentage did she get correct?
90%
8z = 160
z=20
What is an inverse operation?
The opposite operation
You see me once in June, twice in November and not at all in May. What am I?
The letter 'e'.
A football team has won 50% of their games. Express this percent in a SIMPLIFIED fraction.
1/2
The 35 students who play wind instruments represent 50% of the students who are in the band. How many students are in the band?
75 students
x / 4 = 13
x=52
What is a variable?
An unknown number
There is a one story house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What color are the stairs?
No stairs because it's a one story house.
Write 85% as a decimal AND as a fraction.
0.85
85/100
A dirt bike is on sale for 20% off and has a sale price of $6079.20. What was the original price of the dirt bike?
$7,599
w / 7 = 12
w = 84
What does isolating the variable mean?
Getting it by itself :)
This is always in front of you but can't be seen.
The future.