IdeasCuriosas - Every Question Deserves an Answer Logo

Questions in Grade Middle-school

[Answered] Carlos pushes a 3 kg box with a force of 9 newtons. The force of friction on the box is 3 newtons in the opposite direction. What is the acceleration of the box?

[Answered] A bus slams on its brakes and goes from 30 km/hr to 15 km/hr in 4 seconds. What is its acceleration?

[Answered] What is a non-example of a substance? (Consider science, water)

[Answered] Each year, Lizzie's school purchases student agenda books, which are sold in the school store. This year, the school purchased 350 books at a cost of $1,137.50. If the school would like to make a profit of $1,500 to help pay for trips and school activities, what is the least amount they can charge for each agenda book? Explain how you found your answer.

[Answered] What is the greatest common factor of 42, 84, and 105, and how do you find it?

[Answered] In an examination, there are four multiple-choice questions with three options each, of which one option is the correct answer. In how many ways can a student answer such that he fails to answer all four questions correctly?

[Answered] A rectangular park is 150 yards on one side and 125 yards on the other. If Debbie walks around the park two times, how far does she walk?

[Answered] Tom doesn't really want to give away blue marbles and would like to change the probability that he chooses a blue marble to \(\frac{1}{10}\). How many marbles that are not blue could he add to the bag so that the probability of choosing a blue marble becomes \(\frac{1}{10}\)?

[Answered] What is 62.6 rounded to the nearest tenth?

[Answered] Write the word form for 2.251.