topic 5
There are red and yellow flowers in a city park. The number of yellow flowers is 3 more than 1/3 of the number of red flowers. There are 21 yellow flowers. Write an equation to find the number of red flowers. Let r represent the number of red flowers.
1/3r+3=21
Describe the sample and the population.
Honey Bee florist customer survey: Favorite Flowers
rose-15
daisy-9
tulip-16
Sample- 40 Customers of honey Bee florist
population-all honey Bee florist customers
What can probability be represented by?
A fraction, decimal, or percent
What is in a scale drawing?
A ratio that relates each drawing length to the actual length it represents.
What are the four quantities when solving problems involving simple interest?
lesson 3-6
principal, interest rate, time, amount of simple intrest
Solve the equation
2(4.3+n)=17.63
n=4.515
There are 400 students at Polly's school. She surveyed a random sample of 80 students to find their favorite hobby. Make an inference from the data.
19 read 30 like to be with friends
8 do crafts 23 play sports
Doing crafts is the least popular hobby at Polly's school.
The number from 1-5 are written on slips of a paper and placed in a bucket. What is the theoretical probability of drawing a 2?
1/5
What is the distance around a circle called?
A circumference
What are equivalent equations?
Equations that look different but are the same.
Solve x+13>43
x>30
What are box plots and dot plots used for?
They are used to display data gathered from samples.
What is experimental probability based on?
It is based on results from an experiment
What is a cross section
two dimensional shape exposed when a three-dimensional figure is sliced.
write and solve the inequality
9 less than the product of 6 and x is greater than 54
6x-9>54
x>10 1/2
solve
-15n>75
n<-5
Becky wants to know if she should sell cranberry muffins at her bakery. She asks every customer who buys blueberry muffins if they would buy cranberry muffins. Is this a representative sample?
No
A basket contains a red,yellow, an a green apple. A second basket contains an orange, a lemon, and a peach. Use an organized list to show all the outcomes in the sample space.
what is the area of (3x8)+(3x2)+1/2(3x3)
34.5
solve the inequality
7(x+8)-4<143
x<13
Write and solve the inequality
9 less than the product of 6 and x is greater than 54
x>10 1/2
How do you find the IQR
You subtract Q3-Q1
if it is equally likely that a soccer team wins or loses any game, what is the probability that the team will win its next two games?
w>W L
L> W L
What is the formula to find the the volume of a prism?
v=bh
5x+3=13
x=2