![]() Therefore, there seems to be an inconsistency in the information provided. However, this does not make sense in the context of the problem. Since the average salary and Peter’s salary are both multiples of A, if A is zero, it implies that all the salaries are zero. To solve for A, we can multiply both sides of the equation by 2: We are given that this average salary is equal to Peter’s salary (2A):ĥA / 2 = 2A INCORRECT! After this the whole thing is wrong! To find the average salary of Ann and David, we add their salaries and divide by 2: Then, Peter’s salary is 2A (twice Ann’s salary).ĭavid’s salary is 2 * (2A) = 4A (twice Peter’s salary). Let’s assign variables to the salaries of Ann, Peter, and David. ![]() Then the average salary of Ann and David is Peter’s salary. Peter’s salary is twice Ann’s salary and half of David’s salary. She has determined that one of her solutions is incorrect. How quickly can all three fill the pool together?ġ3. Jim can fill a pool carrying buckets of water in 30 minutes. How much time will pass before the second cyclist catches up with the first from the time the second cyclist started biking?ġ2. The second cyclist travels at 10 miles per hour and starts 3 hours after the first cyclist who is traveling at 6 miles per hour. Two cyclists start biking from a trail’s start 3 hours apart. If one of the numbers is Z and another is Y, what is the remaining number?ġ1. In the previous question – what part of all the students are brunette girls?ġ0. 20% of the girls are brunettes and of the rest – half are blondes: Mary, Clara, Gina and Trisha. Number of boys in a class is twice the number of girls. What per cent more time does the first car need to travel the same route as the second car?Ĩ. The speed of one car is 20% less than the speed of a second car. How many trees in all are in the forest?ħ. Among the leaf-bearing trees 7/15 are oak and 2/3 of these oaks are new. ![]() In a forest 4/7 of all the trees are conifer and the rest are leaf-bearing. ![]() What is the average of numbers a, b and c?ĥ. If Kate buys ice-cream for 5 dollars, then Kate will have double Ann’s money. Then the average salary of Ann and David is Peter’s salary.ģ. Quiz Identifying Linear Equations Quiz Identifying Directions of Parabola.2. Quiz Dividing Complex Numbers Quiz Mixed Complex Number. Operations with Polynomials Quiz Linear Equations Quiz Expressions and Variables Quiz Algebra Properties Quiz Properties of Equality Quiz Algebra Vocabulary Quiz Multiplying Polynomials Quiz Multiplying Polynomials 2 Quiz Solving linear equations using addition and subtraction Quiz Solving linear equations using multiple operations Quiz Solving linear equations using multiplication and division Quiz Solving linear equations using the distributive property Quiz Word Problems in Algebra - Beginning Quiz Word Problems in Algebra_words to numbers and operations_Beginning Quiz Word Problems in Algebra - Intermediate Quiz Word problems in algebra - difficult Quiz Degree of Monomial Quiz Monomial or Polynomial Quiz Classifying Polynomials by Degree Quiz Identifying Polynomial or Not Polynomial Quiz Interval notation Quiz Naming Polynomials Quiz Scientific Notation to Standard Notation Quiz Standard Form of Linear Equations Quiz Identifying Slopes & Intercepts Quiz Slope-Intercept Equations Quiz Applications and Word Problems with Inequalities Quiz Finding the Equation of a Line Quiz Equations of Parallel and Perpendicular Lines Quiz Factoring polynomials by grouping Quiz Finding the Y-Intercept ("b") Quiz Linear Equations With a Slope & a Point Quiz Reviewing Linear Equations Quiz Solving Linear Equations by Addition or Subtraction Quiz Finding the Slope of a Line Given Two Points Quiz Solving Linear Equations by Multiplication or Division Quiz Factoring polynomials when terms have a common factor Quiz Factoring trinomials of the form x^2 + bx + c where c is positive Quiz Factoring trinomials of the form x^2 + bx + c where c is negative Quiz Factoring trinomials of the form x^4 + bx^2 + c Quiz Solving Equations With Multiple Steps Quiz Solving Equations With Variables on Both Sides Quiz Writing Word Problems Quiz Consecutive Integers Quiz Consecutive Even Integers Quiz Factoring trinomials of the form ax^2 + bx + c where a is not 1 using the ac-method Quiz Solving Equations with Parentheses Quiz Perimeter Problem Solving Quiz Problem Solving with Multiple Numbers Quiz Slope of a Line Quiz Recognizing trinomial squares Quiz Recognizing differences of squares Quiz Solving Equations with Fractions Quiz Identifying Real and Imaginary Numbers Quiz Adding Complex Numbers Quiz Subtracting Complex Numbers Quiz Multiplying Complex Numbers. ![]()
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