Question

there are 3 machines and they are used to harvest crops. machine b harvests 500 kg more crops per hour than machine a, and machine c harvests 1.2 times the weight of the crops harvested by machine a every hour. suppose machine a can harvest x kg crops per hour. then, machine b and c can harvest __ kg and __ kg crops per hour, respectively. a x + 500; 1.2x b x - 500; 1.2x c x + 500; x + 1.2 d x - 500; x + 1.2

Explanation:

Step1: Find Machine B's harvest

Machine B harvests 500 kg more than A, so:
$x + 500$

Step2: Find Machine C's harvest

Machine C harvests 1.2 times A's amount, so:
$1.2x$

Answer:

A. $x + 500; 1.2x$