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Consumer Mathematics

Simplify

Simplify as much as possible; see attachment: [t/(t + 3t)] / [(1 +4)/(t+1)]

Rational expressions

I need help with solving the problems in the attachment. 2/3-1/4 7/12-1/4 -2/3+1/4 4x2 3-(8-9) 2x4+4-3(1-2) (a+b)(a-b) b-c__ 2b-a ac+bc

Operations: Rational Expressions and Fractions

How is doing operations (adding, subtracting, multiplying, and dividing) with rational expressions similar to or different from doing operations with fractions? Can understanding how to work with one kind of problem help in understanding how to work another type? When might you use this skill in real life?

present value of money

Determine the present value P you must invest to have the future value A at simple interest rate r after time t. A=$8000.00 r=11.5% t=6months. Round this to the nearest cent

Simple interest owed

The principal P is borrowed at a simple interest rate r for a period of time (t). Find the simple interest owed for the use of money. Assume 360 days in a year and round answers to the nearest cent P=$11,000 R=7%, t=30days

Have calculators have eliminated the need to learn

Some people believe that calculators have eliminated the need to learn the skills to perform mathematical operations by hand. State your position on this belief, and then support your position with real-life stories or examples

Geometry - Ratio and Proportion

1.The sides of a triangle are in the ratio of 3:4:5. If the perimeter is 90 centimeters, find the length of each side. 2.Use the Pythagorean Theorem to find the length of the missing side in right triangle. Triangle ABC with right triangle C. a. If a= 3cm and b = 4 cm, find c b. If a=6 yd and c= 11 yd, find b Answe

Fraction Reciprocals

11. Find the reciprocal of (1/5)(15) 12. Divide -12/0 13. Divide 90/30 14. Perform the indicated operation 11-6 _____ 7-7 or 11-6/7-7 15. Find the reciprocal of 1/3(9-4).

comparing fractions and evaluate expressions with fractions

1. Place the following set of numbers in ascending order. -2/5,1/6,7/8 -5/9,3/4 2. Which of the following numbers are integers? 11/3,9.7,-163,-3/8,1 3. Determine the maximum and minimum values of the following set of numbers. 36/7,-1,-2/3,-5,26/9 4. Evaluate [-14] 5. Add -4/5+(3/4)

Ratios and Porportions - Calories

Activity Cal/h Activity Cal/h Bicycling 6 mi/h 240 Running 10 mi/h 1,280 Bicycling 12 mi/h 410 Swimming 25 yd/min 275 Cross-country skiing 700 Swimming 50 yd/min 500 Jogging 5 mi/h 740 Tennis (singles) 400 Jogging 7 mi/h 920 Walking 2 mi/h 240 Jumping rope 750 Walking 3 mi/h 320 Running in place 650 Walking 4 mi/h 440

equation, expression and set

Directions : Write the word or phrase that best completes each statement or answers the question. 1. It is estimated that y , the number of items of a particular commodity (in millions)sold in the united States in year x represents the number of years since 1990 , is given the formula y=1.38x+3.49. That is , x =0 represents

Imaginary number and fraction

a) Find the following values using the imaginary unit i : i) 4* (-1)^1/2 11) 9x^2 +18 = 0 iii) ( 3 + 4i )( 2 + 5i ) b) George's age is three -fourths of Angel' s age. In 5 years George's age will be 7/9 Angel's age. how old is George now ?

Basic Maths - Ratios and Proportions

Describe an application for the use of ratios or proportions that is not mentioned in your text, or describe how an application problem in the text could be useful in your daily life. Basic Mathematical skills with Geometry 6th

Basic Mathematics Problems Involving Fractions and Word Problems

# 22 Find the least common multiple(LCM) for each group of numbers: 12,20,and 35 #36 1/3 + 5/8 + 4/5 #44 13/15 - 11/20 -------------------------------------------------------------------------- Kitchen sub flooring Benjamin and Olivia are putting a new floor in their kitchen. To get the floor up to

Basic Math Skills With Geometry and Fractions

#18 13 11 __ + __ 18 18 #38 9 - 3 + 7 __ __ __ 11 11 11 #44 One took 7 minutes (min), a second task 12 min and a third took 21 min. How long did the task take as a fraction of an hour? #50 Find the perimeter of the following triangle. 3 3 3

Ratio & Proportion

Explain how to set up and solve the following This is a table compartment a b c d proportion .25 .20 .35 .30 Suppose Alrik determines that his gerbil spends time in the four compartment A,B, C, and D in the ratio 4:3:2:1. What proportions should he fill in the table above? Is

Recycling Newspapers to Raise Money

A high school class wants to raise money by recycling newspapers. The class decided to rent a truck at a cost of $150 for the week. The market price for recycled newspapers is $15 per ton. Write an equation representing the amount of money the class will make based on the number of tons of newspapers collected.

Mathematics: Time Value of Money

A 9 million dollar contract that stipulates equal payments to be made monthly over a period of five years. To determine what such a contract is worth today, you would need to use Choices are present value factors future values factors presnt value factors of an annuity future value factors of an annuity

Solve: Ratio and Proportion

1. A lawyer bills her clients $250 per hour of service. If a client's case requires 47 hours to complete, use proportion to calculate how much the client will owe the lawyer (excluding tax). 2. A new virus is released on the internet; the administrator of a department's Local Area Network ( LAN) is given five minutes by a ma

Continued Fractions

Show that each of the following holds: [1,1,1,1,1,1,....]^2 = [2,1,1,1,1,1,....] [1,2,2,2,2,2,....]^2 = [2] [1,1,1,1,1,1,....][0,1,1,1,1,1,....] = [1] In each case make a conjecture about a possible generalisation, and explore it (i.e. attempt to prove your conjectures true or false). Note:We can write down any

Solve

1. 2x - 5 / (x - 2)(x + 6) + x^2 - 2x + 1 / (x - 2)(x + 6) 2. y + 4 - y - 2 ------- ------ 10 14 3. 2/(x-3) + 3/(3-x) 4. 3 - c - 4 - 5