11. mrs. carter hiked down a trail at a steady rate for 10 minutes. her change of elevation was -200
she continued to hike down for another 20 minutes at a different rate. her change in elevations for this par
hike was-300 feet. during which portion of the hike did she hike down at a faster rate? explains

Look at this expression. a3b3c a-3b-3c-1 which of the following is the simplest form of the expression above?

Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .

How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?