12/2/2023 0 Comments Basic algebra question and answerThis means that (1 + 1 / (1 – 1/x)) is equal to 1/4. x is in the inner part of this fraction then, we need to narrow the circle to reach x: We can follow outside to inside method to solve this type of problems. In KS3 we learn a variety of different algebra techniques to answer algebra questions and to practise problem solving with algebra. 28 / 28 … Since both sides are written on the denominator 28 now, we can eliminate them: The least common multiplier of 4 and 7 is 28. First, let us find a common denominator to simplify the expression. There are two fractions containing x and the denominators are different. My father’s age divided by 5 is equal to my brother’s age divided by 3: (2x – 3) / 5 = (x + 3) / 3 My father is 3 less than 2 times my age: 2x – 3 My brother is 3 years older than me: x + 3 X = 8 – 2 – 2 crosses the equal sign so negative The result is 24: 3(x + 2) = 24 … Solving this linear equation, we obtain the value of the number:ģ(x + 2)/3 = 24 /3 Divide both sides by 3 and cancel out The first time, Brian answered 150 questions correctly and the second time he answered 30% more correctly, so,ġ50 + (30/100 * 150) 30% of 150 = 45, or (30 * 150)/100 The price increased from $20 to $25 ($5) so the question is 5 is what percent of 20. My father’s age is 3 less than 2 times my age. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. My father’s age divided by 5 is equal to my brother’s age divided by 3. A number is increased by 2 and then multiplied by 3. Given that the first time he took the test Brian had answered 150 questions correctly, how many correct answers did he answer in the second test?Ĩ. After taking several practice tests, Brian improved the results of his GRE test by 30%. ![]() By how many percent did the price decrease?ħ. The price of a book decreased from $25 to $20. By how many percent did the price increase?Ħ. The price of a book went up from $20 to $25.
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