exam Maths Puzzle Numerical Ability

Technology: Driving down a moutain, Tom finds he has descended 1800 ft in elevation by the time he is 3.25 mi horizontally away from the top of the mountain. Find the slope of his descent to the nearest hundredths.

Read Solution (Total 0)

exam Other Question

I am stuck on correct answer for:

if x - 2/7 x = 5, then x =

I believe answer is "7" but I need to verify my work. Can you show me the breakdown to get correct resolve?
Does anyone know how to do this?

Factor completely. x^4 +x^2 -12