We let x be the length (in minutes) of a certain science class. 65% of this period is spent with the experiment which lasted for about 52 minutes. Mathematically, this can be expressed as, 52 = (0.65)(x) The value of x from the generated equation is 80. Thus, the science class is 80 minutes long.
X = 213.075 First you have to get rid of the 4 and since it’s multiplying you to the opposite and that’s dividing. -3.7 divided by 4 = -0.925 X - 214 = -0. 925 Then you add 214 to -0.925 and get 213.075