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The equation b = 100 - 6r gives the number of points left on a amusement park bonus card after r rides.
a. Rosi has 34 points left. How many rides has she been on?
b. Dwight has 16 points left. How many rides has he been on?



Answer :

Trackpad
Substitute b for given values

64 = 100 - 6r
16 = 100 - 6r

Move too to other side

-36 = -6r
-84 = -6r

Divide each side by 6

6 = r
14 = r 
are your answers.



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