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Home Question Bank Math Arithmetic Archive 2025 January 13

Arithmetic Questions from Jan 13,2025

Browse the Arithmetic Q&A Archive for Jan 13,2025, featuring a collection of homework questions and answers from this day. Find detailed solutions to enhance your understanding.

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Divide the fractions. \( \frac{15}{22} \div \frac{21}{10} \) \( \frac{15}{22} \div \frac{21}{10}=\square \) (Type an integer or a simplified fraction.) 14 Recopie et complète des égalités ci-dessous par les fractions irréductibles qui conviennent. \( \begin{array}{l}\text { a) } \frac{9}{7}-\frac{1}{7} \text {; b) } 1-\frac{\cdots}{\cdots}=\frac{3}{5} \text {; c) } \frac{\cdots}{\cdots}-\frac{5}{8}=\frac{11}{24} \\ \text { d) } \frac{\cdots}{\cdots}-\frac{3}{5}=\frac{23}{15} \text {; e) } \frac{9 \times \cdots}{24}-\frac{\cdots}{42}=\frac{23}{}\end{array} \) Divide the fractions. \( \frac{88}{65} \div \frac{72}{143} \) \( \frac{88}{65} \div \frac{72}{143}=\square \) (Type an integer or a simplified fraction.) Divide. \( \frac{10}{4} \div \frac{5}{9} \) \( \frac{10}{4} \div \frac{5}{9}=\square \) (Type an integer or a simplified fraction.) Divide the fractions. \[ \frac{2}{15} \div \frac{14}{21} \] \( \frac{2}{15} \div \frac{14}{21}=\square \) (Type an integer or a simplified fraction.) 4 - Variation and Percents Question 65, 4.6.15 HW Score: 02.64\%, 62 of 63 points Points: 0 of 1 Specifications call for a hole in a machined part to be 2315 in in diameter it the hole is measured to be 2319 in, what is the machinist's percent error? The machinists percent error is \( \square \) \% (Type a whole number of an exact decimal If the decimal does not terminate, round to two decimal places ) riation and Percents \( 1 \leftarrow \) An engine supplies 110 hp to an electric generator, and the generator delivers 70 hp of electrical power. What is the efficiency of the generator? The efficiency of the generator is \( \square \% \) Score: \( 80.95 \%, 51 \) of 63 points (Type a whole number or decimal rounded to two decimal places as needed.) ation and Percents ACB radio is rated at 7.5 watts, and actual measurements show that it delivers 6.3 watts to its antenna. What is its efficiency? The efficiency is \( \square \% \) Points: 0 of 1 (Type a whole number or decimal rounded to two decimal places as needed.) \( 1 \leftarrow \quad \begin{array}{l}\text { Divide the fractions. } \\ \frac{2}{15} \div \frac{14}{21} \\ \frac{2}{15} \div \frac{14}{21}=\square \text { (Type an integer or a simplified fraction.) }\end{array} \) Multiply. \( \frac{7}{20} \cdot \frac{8}{49} \) \( \frac{7}{20} \cdot \frac{8}{49}=\square \) (Type an integer or a simplified fraction.)
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