How long do you have to complete each question on the ACT math?
1 min.
100
Define:
Mean
Median
Mode
Range
Average
Middle (ordered)
Most commonly occuring
Biggest value-Smallest value
100
Your meal costs $9.50. How much would the bill cost with a 10% tip?
10.45
.95+9.50=10.45
100
5a2 * 100a100
500a102
100
Who did Mr. Reyna run away from at the Hollywood Bowl?
A security guard after he jaywalked.
200
What does ISME stand for?
Identify, Set Up, Make Sure, Execute.
200
The average of three numbers is 15. If the first numbers are 9 and 10, what is the third number?
26.
9+10+26 = 45/3=15
200
Jay-Z's latest album costs $15 at Best Buy. There is a 20% off sale. Employees get an extra 10% off from that price. How much does an employee pay?
$10.80
$15*.2 = $3. So, customers would pay $12.
$12*.1 = 1.2. So, employees would pay $10.80
200
The ratio of cats to dogs at a shelter is 3:2. If there are 600 cats, how many dogs are there?
400 dogs.
200
The second term of an arithmetic sequence is -10, the third term is 0, and the fourth term is 10. What was the first term?
-20
300
How much of the 60 minutes should you allot for a first run-through?
45 minutes.
300
Karla has 3 green marbles, 2 red marbles, and 5 blue marbles. If all the marbles are dropped into a dark bag, what is the probability that Karla will NOT pick out a green marble?
7/10
300
If something is 25% off, what is the shortcut method to finding this price. Multiply by___________
Similarly, if something has a 50% markup, what is shortcut method to finding this price. Multiply by ___________.
0.75
1.5
300
(25x8)2
625x16
300
What is the prime factorization of 128?
27
400
Explain "backsolving"
*many answers will work*
400
The probability it rains tomorrow is 1/2. The probability I oversleep tomorrow (which has nothing to do with rain) is 1/4. What’s the probability that I both oversleep and it rains?
1/8.
With independent events, you multiply the probabilities.
1/4*1/2
400
Los Angeles has a 0.2% tax on motel and hotel rooms per night. If a Motel 6 costs $40 bucks per night, how much tax is paid on a room in TWO nights?
16 cents.
$40*.1=40 cents/5 = 8 cents per night tax.
8*2 = 16 cents total
400
There are 900 boys and 150 girls at a softball game. What is the ratio of girls to boys?
1:6 girls:boys ratio
(remember, 6:1 would be the boys:girls ratio, which is different!)
400
How do you know if a number is divisible by 3?
Add up the digits, and if that number is divisible by three, than the original number is as well.
500
Of the 60 questions, which subject has the biggest representation. Approximately how many of the 60 questions are of this topic?
Pre-Algebra. Anywhere from 25-32 of the questions are Pre-Algebra.
500
Kevin got a 65, 60, and 59 on the first three tests. What does he need on the fourth test to pass (get a 70) in the class?
96.
65+60+59+96=270/4=70
500
The sales price of a car is 10,000, which is 20% lower than the original. What is the original?
$12,500
Why? $12,500*.8=10,000. (20% OFF)
500
If the radius of a sphere is doubled, how much does its volume increase by?
By a factor of 8 (2 cubed, due to the r cubed factor in the spherical volume formula)
500
A bicycle originally costs $100
Which is less? Getting 28% off,
or getting 10% off, then 10% off that price, and 10% off that price.
Tell how much each would cost!
Less with the 28% discount.
$100*.72= $72 with 28% discount.
$100*.9 = 90*.9=81*.9=$72.90 with three consecutive 10% discounts.