1 In a class, there are 20 men and 15 women. Find the ratio of the number of men to the number of students in the class. First express the ratio as a fraction reduced to lowest terms. Then re write the ratio using a second method.

2.Determine whether each of the ordered pair is a solution of
3x-4y>7:

(0,0), (3,-6), (-2,-5),(-3,4)

3. A chemist needs to mix a 40% acid solution with a 70% acid solution to obtain the 12 litters of a 50% acid solution. How many liters of each of the acid solutions must be used? (2 points)

4. solve the portion: 45/2 = 360/x

5.graph each equation or inequality in the rectangular coordinate system. (4 points)
a.2x-y =4

b.3x-2y<-6

6 Solve each system by the graphing method. If there is no solution or an infinite number of solutions, state so.

a)2x-3y=12
-2x+y=-8

b)3x+2y=6
3x-2y=6

7. Solve each system by the substitution method. If there is no solution or an infinite number of solutions, state so.
a) 2x-y=6
x=13-2y

b) 3x+4y=-13
5y-x=-21

8.Solve each system by the addition method. If there is no solution or an infinite number of solutions, state so.

3x-4y=1
12x-y=-11

9. Health experts agree that cholesterol intake should be limited to 300 mg or less a day. Three ounces of shrimp and 2 ounces of scallops contain 156 mg of cholesterol. Five ounces of shrimp and 3 ounces of scallops contain 45 mg of cholesterol less than the suggested maximum daily intake (300 mg). Determine the cholesterol content of an ounce of each item.

... If x is the number of doll houses and y is the number of furniture sets, which system of inequalities ... The answers are highlighted in the enclosed word file. ...

... In other words, this is the error of failing ... 7) A stem-and-leaf display is great since you can actually see the numbers that are included in the data set. ...

... A set of time series data is showing no particular ... Jerry can calculate the mean square error (MSE) by averaging the ... testing are provided in both a Word and PDF ...

There are 4 questions in word file and 1 ... Calculations Sample Proportion 0.18 Standard Error 0.042426407 ZT ... the claim that the percent of sets needing repair ...

...Word Count: 976 Resources: (Book) - Zunker, V. (2011). ... outline should yield around 400 words which should ... Consider for example the problem of personal relations ...

... This outline should yield 250 words which should cover what ... Below are 3 issues of ethics in counseling with ... mindful about what they communicate in word and in ...

...Word Count: 849 Resources: ... This outline should yield around 450 words which should cover what you ... of APA's code of ethics cover most ethical issues and concerns ...

... You may collaborate on this problem set insofar as ... The following are the number of words correctly remembered ...Word problem might state that the mean is "equal ...

... 1,100 word essay about legal, ethical, and licensure (competency ... laws are broken there are a set of consequences ... The most popular ethical issues in regards to ...