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Questions in Grade Middle-school

[Answered] During a science experiment, Peter found the temperature of a certain liquid to be [tex] -a^\circ [/tex] Centigrade after he had raised the temperature by [tex] x [/tex] degrees. Write an expression to represent the temperature of the liquid at the start of the experiment, before it was raised.

[Answered] The Earth rotates about its axis once every 23 hours, 56 minutes, and 4 seconds, and the radius of the Earth is 3960 miles. Find the linear speed of a point on the equator in miles per hour (mi/h).

[Answered] How many tens are in 876?

[Answered] What is the value of \( b \) in the equation? \[ 5b - 4 = 2b + 17 \]

[Answered] What recent world issues or problems can be solved if people recognize and perform their roles effectively?

[Answered] The dimensions of a large room are double the dimensions of a small room. Both rooms are rectangular prisms. The volume of the small room is 10 cubic meters. What is the volume of the large room?

[Answered] Which sentence has the correct punctuation? A. “Sorry I’m late, he apologised, but my car wouldn’t start.” B. “Sorry I’m late” he apologised “but my car wouldn’t start.” C. “Sorry I’m late,” he apologised, “but my car wouldn’t start.” D. “Sorry I’m late,” he apologised, “But my car wouldn’t start.”

[Answered] Which option correctly completes the sentence? Council plans for the new pool were approved ________ on Monday. A. last Friday: work will begin B. last Friday, work will begin C. last Friday; work will begin D. last Friday! work will begin

[Answered] Two places are 4.7 cm apart on a map. On the map, 1 cm represents 5 km. What is the actual distance between the two places?

[Answered] Find one word that is incorrect. The perimeter of a circle is its circumfrance.