Lesson Assessment PDF

# Lesson Assessment ## First Measuring Conceptual Understanding - **Choose the correct answer from the given ones:** 1. Which of the following represents a proportion? - (a) The price of 3 kg of bananas is 54 LE, and the price of 5 kg of bananas is 80 LE. - (b) 10 goals out of 12 attempt...

# Lesson Assessment ## First Measuring Conceptual Understanding - **Choose the correct answer from the given ones:** 1. Which of the following represents a proportion? - (a) The price of 3 kg of bananas is 54 LE, and the price of 5 kg of bananas is 80 LE. - (b) 10 goals out of 12 attempts, and 12 goals out of 18 attempts. - (c) Reading 3 books in 2 months, and reading 9 books in 6 months. - (d) 144 pulses in 2 minutes, and 210 pulses in 3 minutes. 2. Magdy can run 75 meters in 25 seconds. If he maintained his speed, which proportion you can use to find the time (X) he needs to run 300 meters? - (a) $\frac{75}{25} = \frac{300}{X}$ - (b) $\frac{75}{25} = \frac{300}{X}$ - (c) $\frac{25}{X} = \frac{300}{75}$ - (d) $\frac{75}{X} = \frac{300}{25}$ 3. Which of the following graphs represents a proportional? - (a) a graph of a curve going upward, but not straight - (b) a graph of a line going slightly downward, but not straight - (c) a graph of a line going upward, at a constant rate - (d) a graph of a line going upward, at a constant rate - **In each of the following, are the quantities in proportion? If yes, write the proportion:** - 5, 8, 15, 24 - 12, 27, 16, 18 - **Which of the following represents a proportion?** - $\frac{2}{5} = \frac{?}{10}$ - $\frac{15}{25} = \frac{?}{60}$ - $\frac{3}{4} = \frac{?}{6}$ - $\frac{5}{4} = \frac{?}{7.5}$ ## Second Applying Scientific Concepts - **Solve each of the following proportions:** - $\frac{3}{4} = \frac{X}{20}$ - $\frac{15}{X} = \frac{30}{12}$ - a : 16 = 5 : 4 - $\frac{1}{3} = \frac{2}{b + 1}$ - **Complete each of the following proportions:** - $\frac{6}{8} = \frac{}{}$ - $\frac{48}{72} = \frac{}{15}$ - $\frac{20}{25} = \frac{36}{}$ - $\frac{12}{}= \frac{}{15}$ - **Saving:** The opposite table shows how much Ibrahim saves within a certain number of months. Are the amounts saved proportional to the number of months? | Amount (LE) | Number of Months | |---|---| | 300 | 2 | | 600 | 4 | | 900 | 6 | | 1200 | 8 | ## Lesson One : Proportion # 5