IdeasCuriosas - Every Question Deserves an Answer Logo

Questions in Grade Middle-school

[Answered] Write 160,000,000 in exponential form.

[Answered] Simplify: [tex]\frac{2^{12}}{2^1}[/tex]

[Answered] A cookie is chosen from a jar containing 4 chocolate chip cookies, 3 peanut butter cookies, and 2 oatmeal cookies. What is the probability that you will choose a chocolate chip cookie? Express your answer as a fraction in lowest terms.

[Answered] Why do meteorites burn when they enter the atmosphere?

[Answered] Please solve these coin problems: 1. James bought 80 postage stamps for which he paid $18.40. Some were 1 cent stamps and some were 33 cent stamps. How many of each kind did he buy? 2. A postal clerk sold 75 stamps for $19.90. Some were 20 cent stamps and some were 34 cent stamps. How many of each kind did he sell?

[Answered] Find four consecutive odd integers whose sum is 196.

[Answered] Jenna is twice as far from the finish line as she is from the start of a 10 km race. How far has she run?

[Answered] The Fairbanks, Alaska, a typical January temperature is -13°F and a typical April temperature is 30°F. What is the difference between these temperatures?

[Answered] Find the angular velocity in radians per second of a wheel turning at 25 revolutions per minute.

[Answered] Find the angle of elevation from a point on the ground 90 feet from the base of a building that is 200 feet tall.