Heather drove at a constant rate. she traveled 162 miles in 33 hours. how far did she drive in 11 hours

54 mi  

Step-by-step explanation:

Heather drove 162 mi in 33 h.

          She drove x mi in   11 h.

This is a problem involving ratio-and-proportion.

162/x = 33/11

Reduce the fraction to lowest terms     162/x = 3

Multiply each side by x                           162   = 3x

Divide each side by 3                                   x = 54

Heather drove 54 mi in 11 h.

b

step-by-step explanation:

the word superfluous means unnecessary

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.