(14 + 19 + x) / 3 = 17
(33 + x) / 3 = 17
33 + x = 17 * 3
33 + x = 51
x = 51 - 33
x = 18 <== third quiz grade
So, first you use what you already know. Put 60 over 100, since 60 is your percentage; put 192 as your denominator, with a "?" as the numerator to represent the missing/unknown part of the fraction. Next, cross multiply, or multiply 60x192 (which is 11520), then divide the product by 100. Your final answer is 115.2. Hope you found this helpful!
Answer:
x=5.5 i think
Step-by-step explanation:
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The 2 is in the ten million’s place