Subject: Mathematics
Book: Maths Mastery
Percent proportion sets up the ratio part/whole = percent/100. If you want to find what percent of 60 is 12, you set 12/60 = x/100. Cross-multiplying yields 12 × 100 = 60x, so x = 20%. Similarly, for “What is 15% of 80?”, the proportion is x/80 = 15/100, resulting in x = 12. This approach is the bedrock for computing discounts, tip calculations, and test score conversions. Familiarity with percent proportions fosters a systematic, quick solution for many percentage-based problems across financial, academic, or daily contexts.
If sin(x) = 3/5 and x is in the first quadrant, what is cos(x)?
View QuestionIf x = 2 and y = 3, what is the value of (x^2 + y^2)?
View QuestionIf log(100) = 2 and log(10) = 1, what is log(1000)?
View QuestionA rectangle has a length of 10 cm and a width of 5 cm. What is the diagonal of the rectangle?
View QuestionWhat is the sum of the interior angles of a hexagon?
View QuestionIf a + b = 10 and ab = 21, what is the value of a^2 + b^2?
View QuestionIf sin(θ) = 3/5 and θ is an acute angle, what is tan(θ)?
View QuestionIf a person can type 45 words per minute, how many words can they type in 2 hours?
View QuestionWhat is the sum of the first 20 odd numbers?
View QuestionThe area of an equilateral triangle with side length 6 cm is:
View Question