NanSuWai09 NanSuWai09

13-08-2017
Mathematics

contestada

The total cost C (in dollars) to participate in a triathlon series is given by the literal equation C = 90x + 35, where x is the number of triathlons in which you participate. a. Solve the equation for x b.In how many triathlons do you participate if you spend a total of $305?

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kphung76127 kphung76127

13-08-2017

a.
C=90x+35
C-35=90x
x= (C-35)/90

b.
305=90x+35
270=90x
x=3

3 triathlons

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