QR test 6

A bag of chips normally costs $2. If there is a sale to get 12 bags of chips for the price of 6 bags, what is the price per bag of chips, taking into account a 10% sales tax?

$1.10

What is the y-intercept of the line 2x - 3y = 9?

(0,-3)

Solve for x:

1

One liter of water contains 1,000 cubic centimeters (cc) of water. How many cubic millimeters (mm3) of water make up one liter?

1,000,000 m^3

A survey was conducted to determine the number of televisions in a household. The data was found to be normally distributed with a mean of 3 televisions and a standard deviation of 1 television. Approximately what percent of the population owns more than 5 televisions in their households?

2.5

Given the following equations, what is the value of a - b? 27 = a 2 - b 2 a = 2b

3

If a = log272 and b = log23, which of the following is equal to "a - 2b"?

3

If two dice are rolled separately, what is the probability that the sum of the two dice is 10 or lower?

33/36

At a science fair, a group of students conducted an experiment to measure the growth of different plants under different conditions. They recorded the heights (in centimeters) of the plants and organized the data in the following stem and leaf plot. Find the average height of the plants.

34.8

Kim has to invite 3 friends from her club to dinner at her home. If there are 8 people in the club, including Kim, how many different ways can she choose her club mates for dinner?

35

Samantha's pie stand has 17 average visitors per day for the past 6 days. How many people must visit her stand on the seventh day to maintain her quota of 20 visitors per day?

38

Jess can buy buttons in quantities of 80 and 15. If Jess wants to buy exactly 500 buttons, what is the maximum number of packs of 80 Jess can buy without going over 500 buttons?

4 packs

3 bags of oranges and 4 bags of apples weigh 25 pounds. If one bag of oranges and one bag of apples weigh 7 pounds, how much does one bag of apples weigh?

4 pounds

A drawer contains 6 black socks and 8 gray socks. If you pick a sock at random, then pick another sock at random without replacing the first one, what is the chance that both socks are gray?

4/13

A standard deck of playing cards has 52 cards, half of which are black and the other half are red. If Angela picks two cards at random with replacement, what is the probability that both cards are the same color?

50%

What percent of 5/8 is 42/112?

60

The price of wheat increases 10% in one week, then decreases 30% the next week, then increases 20% the following week. What is the net change in the price of wheat?

7.6 %

What is a possible value of x?

7/13

If Corey gave 70 stickers to Jared, and Jared gave 10 stickers to Megan, all three kids would have the same amount of stickers. How many more stickers does Corey have than Megan?

80

for x>0 a. is greater b is greater equal NA

B is greater

1. A is greate b. is greater C. equal E. NA

are they intersecting? the probabla with the linear line put them equal to each other and see if they intersect

A. is greater B is greater C they are equal D. NA

both equal

Grace is twice as old as her sister. How old is Grace? 1) Grace was three times as old as her sister two years ago.2) The sum of Grace's age and her sister's age equals 12.

each is sufficient

Using information from the graph, exactly how many people ran 2 miles?

statment 2 alone is sufficient and 1 is not

Bill can mow a lawn in one hour and twenty minutes. If Bill and Dave can mow the lawn together in a half hour, how long does it take for Dave to mow the lawn alone?

use combined rate law 48 minutes

If x < 0 and y > 0, which of the following must be true?

x-y <0

Given that x is an integer, is x an odd number? 1) x + x equals an even number. 2) x * x equals an even number.

2 alone is good but 1 is not

A bird launches into flight from a point on the ground. The bird can fly 8 feet per second horizontally and 6 feet per second vertically. After 10 seconds, how far has the bird flown relative to its initial spot on the ground?

100 feet

An architect is building a basement for a new house. The shape has to be square, and it needs to have an area of at least 150 feet2. What is the minimum length each side will have to be, rounded up to the nearest foot?

13 feet