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I REALLY NEED HELP ON THIS QUESTION ASAP PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

At Jessica’s school, students can buy scientific calculators for $15.00 each. Graphing calculators cost 5 times that amount. If $345.00 worth of calculators were sold and 3 of those were graphing calculators, how many scientific calculators were sold?

Respuesta :

a graphing calculators cost $75 because 15 x 5 = 75 so then do 75 x 3 = 225 then subtract 345 by 225 and you get 120 so then 120 / 15 = 8 so 8 scientific calculators where sold  
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Answer:

8

Step-by-step explanation:

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