math

A stadium have to section a & B .
tickets for section A cost $A each .
tickets for section B cost $B each .
johanna paid $105 for 5 section A and 3 section B.
raiyah paid $63 for 4 section A and 1 section B .
i) Write two eguations

ii) Calculate the value of A and B

asked by chin
  1. i) 105 = 5A + 3B
    63 = 4A + 1B

    ii)you solve this system equation by either by substitution or elimination

    cheers

    posted by sydney
  2. so baisically multiply the 2nd equation by 3 so you can subtract the 3bs let me show you
    105=5a+3b
    -189=12a+3b
    ------------
    -84=-7a
    12=a

    then substitute
    105=5(12)+3B
    105=60+3B
    45=3B
    15=B

    :)

    posted by maribel

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