Thursday
March 23, 2017

Post a New Question

Posted by on Wednesday, February 20, 2008 at 5:57pm.

PAULA ,SIMON AND RANDY COLLECTED INSECTS FOR THEIR SCIENCE PROJECT. AT THE END OF THE FIRST WEEK PAULA AND RANDY TOGETHER HAD 89 INSECTS, RANDY AND SIMON TOGETHER HAD 80 INSECTS, PAULA AND SIMON HAD TOGETHER HAD 85. HOW MANY DID EACH HAVE ALONE?

  • Math - , Wednesday, February 20, 2008 at 7:01pm

    P + R = 89
    R + S = 80
    P + S = 85

    combine the first two equations by subtraction
    P - S = 9
    add that to the third
    2 P = 94
    P = 47
    S = P-9 = 38
    R = 80 - S = 42

    check that
    P+R = 47+42 = 89 yes
    R+s = 42+38 = 80 yes
    P+S = 47+38 = 85 yes

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question