Mathematics

Question

twelve and three tenths more than five and thirteen thousandths of a number d is equal to fifteen and three hundred two thousandths. what is the value of d?

2 Answer

  • 12 3/10 (12 3/10) more than (+) 5 13/1000 of a number d (5 13/1000d) is equal to (=) 15 and 302/1000 so


    we want the bottom numbers the same so

    12 and 3/10=12 and 300/1000
    5 and 13/1000 is the same
    302/1000 is the same so

    12 300/1000+5 13/1000d=15 302/1000
    subtract 12 300/1000 from both sides
    5 13/1000d=3 2/1000
    5 13/1000d=5013/1000d
    3 2/1000=3002/1000
    5013/1000(d)=3002/1000
    multiply both sides by 1000/5013 (to make it a one exg 1/2 times 2/1=2/2=1)

    d=3002/5013 times 1000/1000=3002/5013≈0.59843
  • Answer and workings in attachment below.