Seekamp Seekamp

03-11-2014
Mathematics

Answered

davids bowling score is 5 less than 3 times aarons score. The sum of their scores is 215. Find the score of each student.

Answer :

Аноним Аноним

03-11-2014

d=David's bowling score

a=Aaron's bowling score

-----------------------------------

d=3a-5

-----------------------------------

a+d=215

---------------------------

If:

a+d=215

d=215-a

---------------------------

If d=215-a

215-a=3a-5

215+5=3a+a

220=4a

a=220/4

a=55

--------------------------

If a=55,

d=215-55

d=160

---------------------------

David's bowling score was 160.

Aaron's bowling score was 55.

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