Ratios
Simplify the following fraction: 5/15
1/3
Find the radius of a circle with diameter of 10 cm
5 cm
Ms. McKinley is from what state?
Connecticut
What is the percent equivalent to ⅓?
33.33…%
Solve the following equation: 2x+5 = 10
x=2.5 or equivalent
Find an equivalent ratio to 10 out of 25
⅖, 4/10, etc
Find the circumference of a circle with radius 5 in terms of pi
10pi
Which of the following has Ms.Bekkedahl not done: take care of bears in Texas, go skiing in Idaho, skydive in Alaska
Skydive in Alaska
Write an expression to represent a 25% decrease where x = original amount
0.75x or x - 0.25x
Solve the following equation: 0.5x-3=10
x=26
A survey finds 10 of 30 people in New Rochelle like to eat cookies. If the survey is representative and there are 30,000 people in New Rochelle, how many like cookies?
10,000 people
Find the area of a circle with diameter 10 in terms of pi
25pi
What’s Mr.Dai’s favourite flavour of cake?
Strawberry shortcake
Ms. Bekkedahl decides to go shopping for clothes on sale. If the original price of a shirt at Zara is $30, but there is a 20% teacher discount, how much will Ms. Bekkedahl spend?
$24
Which is larger, x or 10, and why? x2 =25
10 is larger, as x=5
What does a sample have to be in order to be accurate?
Representative and randomly selected, a larger sample size is good
How many times larger is the area of a circle with radius 10 than one with radius 5?
4 times larger
Mr.Dai has x siblings. Ms.Bekkedahl has one more sibling than Mr.Dai. Ms.McKinley has one less than twice the amount of Ms.Bekkedahl. In total, the three members have about two siblings. How many siblings does Ms.Bekkedahl have?
1, since x+(x+1)+(2x+2)-1=2 is 3x+2=2 or x=0
Write an expression to represent a 15% increase where x = original amount
1.15x or x + 0.15x
What is the difference between an open and closed circle on a number line?
Open is x< or x>, Closed is x<= or x>=
Joe did a survey with 100 randomly selected people, Mama did a survey with 10 randomly selected people. Which is better and why?
Joe, his sample size is bigger.
Which has a larger area: a square with sides length 10 or a circle with radius of 5?
square
Which 7th grade homeroom has the most students?
Caltech
Jada and her brother share a meal in a restaurant. Jada adds up the prices listed on the menu for everything they ordered and gets a subtotal of $45.15. After tax, Jada includes a tip and the total restaurant bill that shows up in her credit card is $54.18. What percentage of the total (after tax) did Jada tip?
0.2, or 20%
Jeb! went to the grocery store with $10. A bag for groceries costs $1. If Annie’s White Cheddar Mac and Cheese is 2.25 per box, how many boxes of Annie’s White Cheddar Mac and Cheese can he buy with his money?
4, since 2.25x+1=10 and x=4