Measures of Center Spread
Find the mean for the following set of data- 54,32,41,49,86,72,39,36
51.125
What is the solution for
y=3x+2 and y=7x-6
(2,8)
Tell whether x = -7 is a solution to the following equation. -3x - 13 = -7x + 15
What is no
Is 55,40,25,10 an arithmetic sequence?
This is an arithmetic sequence.
What is the common ratio, r, of the following sequence -3, 6, -12, 24,...
r = -2
Find the median for the following set of data- 11,13,16,17,18,20,21
17
Julissa wants to buy a pair of pants for $25 and some shirts for $8 each. Write an inequality if she has a budget of $140
8x+25 <= 140
x/4 - 6 ≤ -10
x <= -16
What is the 10th term in the sequence 8,15,22,29.
The 10th term in the sequence is 71.
Identify the following sequence as arithmetic, geometric, or neither. 3, 5, 8, 12,...
neither, there is no common difference or ratio.
Find the M.A.D- 15,26,16,30,24,19,35 (Round to the nearest tenth)
The rounded answer is 6.28
Cecilia has a budget of $100. She wants to buy a pair of pants for $20 and some shirts for $10 each. How many shirts can she buy with her budget?
8 shirts
Mary had some baseball cards. She sold half of them to earn some money. Then she bought 3 more cards. Now she has 29 cards. How many cards did she start with?
What is x/2 + 3 = 29 x = 52 cards
Write the explicit form of the sequence 7,5,3,1.
A_n = 7 + (n-1)(-2)
Find the next 3 terms of the sequence
1, 1, 2, 3, 5, 8, ...
AND what is the name of this sequence?
13, 21, 34
Fibonacci Sequence!
Find the IQR- 34,19,23,20,27,32
12
For what values of x will the statement be true?
|2x+7| = 9
x = 1
x = -8
What is the value for x if the perimeter of a triangle is 29 units and its sides are 7, x, and x + 2?
What is x = 10?
A writer wrote 890 words on the first day, 760 words on the second day and 630 words on the third day, and so on in an arithmetic sequence. How many words did the writer write on the 7th day?
They will write 110 words on the 7th day.
Write an equation for the nth term. 5,-10, 20, -40
an=5(-2)n-1
Find the upper quartile of the data: 4, 5, 2, 10, 3, 9, 5, 3, 8, 5, 6
8 (Least to greatest: 2, 3, 3, 4, 5, 5, 5, 6, 8, 9, 10)
When looking to rent a car,
Go-Beach-Go charges $29.65 plus 16cents per mile
Sunnyside Buggies charges $72 a day for unlimited miles
Playa Buggies has no daily fee and charges $0.45 per mile.
What company will be the cheapest for 300 miles?
Sunny side buggie
Solve. -4 (5x - 2) ≥ 4x + 5
1/8 or .125
There are 130 students in grade one, 210 students in grade two and 290 students in grade three in a elementary school, and so on in an arithmetic sequence. What’s the total amount of students in an elementary school that has the 6th grade?
There are 1980 students in the elementary school.
Create an explicit formula for
1, -30, 900, -27000, ...
What is
an=1(-30)n-1