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Questions in Grade Middle-school

📝 Answered - You are getting a larger aquarium for your neon tetra fish and you also want to add more tetras to the larger aquarium. The general rule is that each fish needs 2 gallons of water. You currently have 6 neon tetras. If you buy a 20-gallon aquarium, what are the possible numbers of fish you can put in your aquarium? Explain your answer.

📝 Answered - Write the equations of five lines that are parallel to [tex]y = \frac{x}{2} - 6[/tex]. (Note: Parallel lines have the same slope. Therefore, the slope of each line should be [tex]\frac{1}{2}[/tex].) 1. [tex]y = \frac{x}{2} + c_1[/tex] 2. [tex]y = \frac{x}{2} + c_2[/tex] 3. [tex]y = \frac{x}{2} + c_3[/tex] 4. [tex]y = \frac{x}{2} + c_4[/tex] 5. [tex]y = \frac{x}{2} + c_5[/tex] Where [tex]c_1, c_2, c_3, c_4,[/tex] and [tex]c_5[/tex] are constants that can be chosen to give different y-intercepts for each line.

📝 Answered - Earth's atmosphere traps energy from the sun. Which is a direct result of the trapping of energy by Earth's atmosphere? A. Earth has weather B. Earth's atmosphere has 4 layers C. Earth has moderate temperatures D. Earth has gravity

📝 Answered - Ming's DVD collection includes 16 adventure movies, 7 comedies, 12 westerns, and 8 mysteries. He wants to keep 8 of the DVDs and give the rest away. If Ming gives the remaining DVDs to each of his 5 friends, how many DVDs will each friend receive?

📝 Answered - How can knowing the GCF and LCM help you when you add, subtract, and multiply fractions?

📝 Answered - Over the summer, a group of math teachers from different schools got together for a BBQ. None of the teachers knew each other and each greeted the others with a handshake. How many handshakes will occur at the party if every one of the 15 math teachers shakes hands with each of the others? Show your work.

📝 Answered - Why were ancient Greek communities isolated from each other?

📝 Answered - If different nations controlled the territory between the Atlantic and the Pacific Oceans, how would life be different?

📝 Answered - What is $9.79 + 7% tax?

📝 Answered - A gym charges a one-time registration fee as well as a monthly fee. The cost of joining the gym for 4 months is $370, and the cost of joining for 6 months is $530. Write and solve a system of equations to find the registration fee and monthly fee.