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Home Question Bank Math Arithmetic Archive 2024 November 21

Arithmetic Questions from Nov 21,2024

Browse the Arithmetic Q&A Archive for Nov 21,2024, featuring a collection of homework questions and answers from this day. Find detailed solutions to enhance your understanding.

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2) \( \longdiv { 3 0 8 } \) 2 Which other expression is represented by the decimal grids in the example problem? Select all that apply. \( \begin{array}{lll}\text { A } 0.7 \times 3 & \text { C } 0.7 \div 3 \\ \text { B } 3 \times 0.7 & \text { D } 2.1 \div 3 \\ 3 \text { How many grids would you need to represent } \\ 4.5 \div 0.5 \text { ? Explain. }\end{array} \) a. \( \frac{2}{3} \div \frac{3}{4}=\frac{2}{3} \times \frac{4}{3}=\frac{x}{9} \quad \) b. \( \frac{3}{5} \div \frac{3}{2}=\frac{3}{5} \times \frac{2}{3}=\frac{6}{15} \quad \) c. \( \frac{22}{4} \div \frac{2}{5} \frac{13}{4} \times \frac{5}{2}=\frac{110}{8} / 13 \frac{6}{8} 113 \) 4. Summer used \( \frac{2}{5} \) of her ground beef to make burgers. If she used \( \frac{3}{4} \) pounds of beef, how much beef did she have first? \( 4.5 \div 0.5 \) Think: \( \quad \times \boxed{?}=\square \) \( 4.5=\quad \) tenths and \( 0.5=\quad \) tenths 5 tenths \( \times \quad 45 \) tenths \( 4.5 \div 0.5= \) 1) For 10.0 minutes, a humpback whale swam south at 44.6 meters per minute. In that time, how far did the whale swim? ()) Write your answer as a whole number. Write \( 5.41 \times 10^{4} \) in standard notation 1) For 10.0 minutes, a humpback whale swam south at 44.6 meters per minute. In that time, how far did the whale swim? ()) Write your answer as a whole number. \( \vee \) Write \( 4,484,000 \) in scientific notation. 1) For 15 seconds, Laura ran toward school at 5.6 meters per second. In that time, how far did she run? ()) Write your answer as a whole number. Helen rented a kayak at the lake. There is a charge of \( \$ 8 \) as an initial fee and ther \( \$ 2 \) an hour for every hour that she uses the kayak. If the total charge is \( \$ 20 \), how many hours did she kayak? 14 hours 6 hours 05 hours 2 hours
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