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Home Question Bank Math Pre Algebra Archive 2025 January 13

Pre-algebra Questions from Jan 13,2025

Browse the Pre-algebra 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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(10) The ratio of gas cars to hybrid cars in the school parking lot is \( 15: 4 \). There are 12 hybrid cars in the parking lot. How many gas cars are in the parking lot? 40. Select all that apply. Mark tagged maple trees and pine trees in a forest. The ratio of maple trees to pine trees that Mark tagged is \( 6: 5 \). Which could be the total number of maple trees and pine trees that Mark tagged? Evaluate \( (5^{2})^{0} + (10^{3})^{0} \) \( a_{1}=3 \) and \( a_{n}=a_{n-1}-9 \), for \( n \geq 2 \) If digits can be repeated, how many three-digit numbers less than or equal to 600 can be formed from the digits \( 0,3,4,6,7 \) and 9 ? (Record your answer in the numerical-response section below.) Your answer: The number of 3 letter arrangements of the word OILERS can be represented in the form \( { }_{n} P_{r} \) where the value of \( n \) is and the value of \( r \) is (Record your answer in the numerical-response section below.) Your answer: Variation and Percents Question 48, 4.4.C-21 HW Score: \( \mathbf{7 2 2 2 \%} \), 45.5 of 63 points Points: 0 of 1 Save The volumetric efficiency of a certain engine is \( 88.3 \% \). This means the actual airflow is \( 88.3 \% \) of the theoretic airflow. If the actual airflow is 250.9 ctm (cubic feet per minute), what is the theoretic airflow of this engine? The theoretic airflow is \( \square \) ctm (Round to the nearest tenth as needed.) 1. Simplify the expression below. \( \sqrt{48} \) The volumetric efficiency of a certain engine is \( 87.5 \% \) This means the actual airflow is \( 87.5 \% \) of the theoretic airlow II the actual aiflow is 2767 cfm (cutic feet per minute), what is the theoretic airflow of this engine? The theoretic airflow is \( \square \) clm. (Round to the nearest tenth as needed) - Variation and Percents Question 41, 4.4.C-5 Hw Score: \( 61.11 \%, 38.5 \) of 63 points Points: 0 of 1 Save The weight distribution of a vehicle specifies that the front wheels carry \( 57 \% \) of the weight If a certain vehicle weighs 3940 lb , what weight is carried by the front wheels? The weight carried by the front wheels is \( \square \) ]b. (Round to the nearest whole number as needed.)
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