Purchase Solution

Word problems - a set of practice problems

Not what you're looking for?

Ask Custom Question

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.

PLEASE SHOW ALL WORK INCLUDING ANY GRAPHS. THANKS

Purchase this Solution
Solution Summary

Answers with proper explanation for all questions

Purchase this Solution
Free BrainMass Quizzes
Probability Quiz

Some questions on probability

Graphs and Functions

This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.

Know Your Linear Equations

Each question is a choice-summary multiple choice question that will present you with a linear equation and then make 4 statements about that equation. You must determine which of the 4 statements are true (if any) in regards to the equation.

Solving quadratic inequalities

This quiz test you on how well you are familiar with solving quadratic inequalities.

Multiplying Complex Numbers

This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.

View More Free Quizzes
Related BrainMass Solutions

  • Calculation of Amounts of Constituents in Acid-Base Equlibrium

    Furthermore, this solution provides an additional example set of problems which are similar to the one being asked in this case, so that further practice can be done on these types of questions.

  • Logarithmic functions on word problems

    This is a great practice problem set on logarithmic functions.

  • linear equations and word problem

    This solution shows how to set up and solve the linear equations for the real world word problems. Step by step calculations are provided for each.

  • Curriculum Guides: Students with Intellectual Disabilities

    Create a check list of steps to complete in order to attack a math word problem or long division questions 3. Divide math word problems into smaller flash card size single problems and give one at a time to the students to solve. 4.

  • CLEP study help

    28244 CLEP Study Help See attached CLEP practice problems. See attached file. I attached both word file( probelm 1-8) and scanned file(problem 9-25) because part of your problems need graphs.

  • Intrepeting Research - Independent Samples t-Test With SPSS

    522851 Intrepeting Research - Independent Samples t-Test With SPSS My assignment requires me to do a practice comparison of the means of two sample populations related to one particular variable.

  • Word Problems

    A lot of people are so daunted by just solving math problems, that just the idea of having to set them up as well is a very uncomfortable thought.

  • Algebra word problems

    414556 Algebra word problems I am having difficulties with two practice word problems attached. Please help. Word Problems: 1. The octane rating of a gasoline is a measure of the amount of isooctane in the gas.

  • Community as partner and role of nurses in the partnerships

    Wenger, McDermott, and Snyder (2002) defined communities as partner of practice as "groups of people who share a concern, set of problems, or passion about a topic".

  • Integration practice using set limits

    1510 Integration practice using set limits Three problems for practice. View the pdf file below for additional clarity.

View More Related Solutions