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bagirrra123 [75]
4 years ago
12

Izzie recently took a math test where each correct answer (a) was worth 7.8 points. She also correctly answered a bonus question

worth 15 points. Using the equation 7.8a + 15 = 77.4, how many questions on the test did Izzie answer correctly?
A) 5
B) 8
C) 12
D) 9
PLEASE HELP FAST!!!!!
Mathematics
1 answer:
kvasek [131]4 years ago
4 0
77.4-15=62.4            62.4/7.8=8, therefore the answer is 9 since the bonus question is later added.
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