Questions in Grade High-school

Questions in Grade High-school

📝 Answered - Solve the system of equations by using substitution: \[ 3x + 2y = 7 \] \[ x - 4y = -21 \]

📝 Answered - How many mg of a metal containing 45% nickel must be combined with 6 mg of pure nickel to form an alloy containing 78% nickel?

📝 Answered - List five examples of electromagnetic radiation.

📝 Answered - Solve each system algebraically: 1. \(3x + 6y = -6\) 2. \(5x - 2y = 14\)

📝 Answered - For the main group elements (excluding the transition elements), is it necessary to memorize the type of ion each element makes, or can you predict the ion charge using a periodic table?

📝 Answered - Where does surface water collect if it does not flow to the ocean?

📝 Answered - Help find the perimeter of a square that measures 78.4 inches. What is the length of each side, and how do you solve the problem?

📝 Answered - Solve the system of equations: 1. \(2X + Y = 7\) 2. \(3X - 4Y = 5\)

📝 Answered - Write the product in words: \[ 8 \text{ to the 2nd power} \times 10 \text{ to the 2nd power} \]

📝 Answered - The rigid layer of nonliving material that surrounds the cell of plants and other organisms is called the _____.