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Andddddd Math
100
P(odd) = 3/4 = 0.75 = 75%
100
The seventh grade wants to break last year’s record of 78 coats collected for the annual clothing drive. They have already collected 13 coats. What inequality represents the number of coats, c, that the seventh grade must still collect?
78 < 13 + c OR 13 + c > 78
100
x = 1/2
100
Which of the following measures CANNOT be determined from a box plot? Select all that apply.
a) Range d) Mode
b) Median e) MAD
c) Mean f) IQR
Mean, Mode, and MAD
100
-6/5
200
Of all sixth graders, 70% sent a text message yesterday. Ten trials of a simulation are conducted and the data are recorded below.
62072, 34570, 80983, 04292, 83150,
36330, 96268, 14077, 77985, 13511
The numbers 0 through 6 represent students who sent a text yesterday, and the numbers 7 through 9 represent students who did not send a text yesterday.
Based on the simulated data, what is the probability that 3 or more of a group of 5 students randomly selected will send a text today?
P(3 or more) = 8/10 = 0.8 = 80%
200
Kaylee obtains a loan with simple interest to buy a car that costs $8,500. If Kaylee pays $1,020 in interest during the four-year term of the loan, what was the rate of simple interest?
3%
200
Find the solution of the equation below.
6(3x – 7.2) = 25.2
x = 3.8
200
If the food and beverages from friends meal at a restaurant costs $21.60 before a 7% meal tax is applied, what is the total cost of the bill?
$23.11
200
Find the solution of the following equation.
3.75x + 15 = 63.75
x = 13
300
Theo budgets $154 for karate classes. He buys a karate uniform, called a dogi, for $12. If it costs $8 to attend each karate class, what inequality represents the number of classes, c, that Theo can take?
154 ≥ 8c + 12
300
P(Ron eats next fry) = 0.18 = 18%
300
A fruit stand sells mangoes for $3.49 per pound, papayas for $1.40 per pound, and coconuts for $1.24 per pound. What expression represents the total price of m pounds of mangoes, p pounds of papayas, and c pounds of coconuts?
3.49m + 1.4p + 1.24c
300
Solve the inequality 2/3x − 5/6 ≥ 1/2
x ≥ 2
300
Kai randomly surveys eighth graders at his school and learns that 7 of 35 respondents own a video gaming system. Based on these data, how many of the 150 eighth-grade students in Kai's school would be expected to own a video gaming system?
30 students
400
k = 30
400
Olivia has $240 in her bank account. Each month, her bank deducts a $12.50 fee for maintaining a balance below $250. If Olivia makes no other deposits or withdrawals, how much money will be in her account at the end of five months?
$177.50
400
Lincoln is saving $360 to buy a new bike. He already has $85 and can earn $12 per hour at work. What equation describes the number of hours, h, for which Lincoln must work to earn enough money to buy the new bike?
360 = 85 + 12h
400
Claire buys a jacket that originally cost $76. The price is marked down 25% for a sale, and Claire has a coupon to further reduce the marked down price by 10%. How much does Claire pay for the jacket?
$51.30
400
Kurt begins with $200 in his bank account and withdraws $10 each week. What equation represents this situation in slope-intercept form?
y = -10x + 200
500
Does the equation y = 4.2x represent a proportional relationship?
Yes, the proportional relationship is 4.2
500
Dave is 8 years younger than 4 times Julia‘s age. If Dave is 16, how old is Julia?
Julia is 6 years of age
500
How many solutions does the equation below have?
2x – 7 + 19 = 6x – 4x + 12
Infinitely Many Solutions
500
Solve the equation below.
1/4x + 3-1/2 = 2(1/2x+3/4)
x = 8/3 or 2-2/3
500
A community service group organizes a car wash that raises 7c – 18 dollars and a spaghetti dinner that raises 6s – 45 dollars. What expression represents the total amount of money raised?
7c + 6s - 63