Purchase Solution

Basic Algebra

Not what you're looking for?

Ask Custom Question

Please see the attached file for the fully formatted problems.

Name: __________________________ Date: _____________

1. Write in simplest form.

2. Simplify.

3. Multiply.

4. Solve.

5. Add. Express your answer in simplest form.

6. What values for x must be excluded in the following fraction?

7. Solve.

8. A car uses 10 gallons of gasoline on a trip of 130 miles. At that rate, how much gasoline will a trip of 234 miles require?

9. Write in simplest form.

10. Divide.

11. Subtract. Express your answer in simplest form.

12. Subtract. Write your answer in simplest form.

13. Solve. - = 1

14. Solve.

15. Solve.

16. One number is 5 times another. If the sum of their reciprocals is , find the two numbers.

17. Simplify.

18. Divide.

24.

48.

56.

72.

6. Number problem. If one-half of one integer is subtracted from three-fifths of the
next consecutive integer, the difference is 3. What are the two integers?

18. Science and medicine. A passenger train can travel 325 mi in the same time a
freight train takes to travel 200 mi. If the speed of the passenger train is 25 mi/h
faster than the speed of the freight train, find the speed of each.

22. Science and medicine. Ariana took 2 h longer to drive 360 mi on the first day of
a trip than she took to drive 270 mi on the second day. If her speed was the same
on both days, what was the driving time each day?

26. Science and medicine. A plane flies 720 mi against a steady 30-mi/h headwind
and then returns to the same point with the wind. If the entire trip takes 10 h, what
is the plane's speed in still air?

34. Business and finance. Kevin earned $165 interest for 1 year on an investment of
$1500. At the same rate, what amount of interest would be earned by an investment
of $2500?

10.

28. Science and medicine. Fungicides account for 1/10 of the pesticides used in the
United States. Insecticides account for 1/4 of all the pesticides used in the United
States. The ratio of fungicides to insecticides used in the United States can be written 1/10 1/4
. Write this ratio in simplest form.

32. Science and medicine. The combined resistance of two resistors R1 and R2 in a
parallel circuit is given by the formula
RT = 1
-----------
1/R1+1/R2

Simplify the formula.

Attachments
Purchase this Solution

Solution Summary

Basic algebra problems are solved. The expert writes functions in the simplest forms.

Solution provided by:
Education
  • BSc , Wuhan Univ. China
  • MA, Shandong Univ.
Recent Feedback
  • "Your solution, looks excellent. I recognize things from previous chapters. I have seen the standard deviation formula you used to get 5.154. I do understand the Central Limit Theorem needs the sample size (n) to be greater than 30, we have 100. I do understand the sample mean(s) of the population will follow a normal distribution, and that CLT states the sample mean of population is the population (mean), we have 143.74. But when and WHY do we use the standard deviation formula where you got 5.154. WHEN & Why use standard deviation of the sample mean. I don't understand, why don't we simply use the "100" I understand that standard deviation is the square root of variance. I do understand that the variance is the square of the differences of each sample data value minus the mean. But somehow, why not use 100, why use standard deviation of sample mean? Please help explain."
  • "excellent work"
  • "Thank you so much for all of your help!!! I will be posting another assignment. Please let me know (once posted), if the credits I'm offering is enough or you ! Thanks again!"
  • "Thank you"
  • "Thank you very much for your valuable time and assistance!"
Purchase this Solution


Free BrainMass Quizzes
Multiplying Complex Numbers

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

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.

Geometry - Real Life Application Problems

Understanding of how geometry applies to in real-world contexts

Exponential Expressions

In this quiz, you will have a chance to practice basic terminology of exponential expressions and how to evaluate them.

Probability Quiz

Some questions on probability