A professional gambler reported that at the end of the first race at the track he had doubled his money. He bet $33 on the second race and tripled the money he came with. He bet $60 on the third race and quadrupled his original bankroll. He bet $68 on the fourth race and lost it, but still had $64 left. With how much money did he start?
?
A. $33
B. $66
C. $165
D. $132
E. $99
Answer: A
Mathematics
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Answer the question.The distance from the Earth to the Sun is about 1.5 × 108 km, while the distance from the Earth to the moon is about 3.8 × 105 km. If a scale model of the solar system is constructed so that the distance from the Earth to the Sun is 100 meters, what will be the distance from the Earth to the moon?
A. 6.36 m B. 39, 474 m C. 0.25 m D. 39.5 m
Mathematics
Write the number in scientific notation.0.00207
A. 2.07 × 10-4 B. -2.07 × 103 C. 2.07 × 10-3 D. 2.07 × 10-2
Mathematics
Subtract.5,855
A. 3,353 B. 3,421 C. 5,421 D. 3,413
Mathematics
Solve.Given log b 3 = 0.8397 and log b 7 = 1.4873, evaluate log b 3b .
A. 0.8397 B. 2.327 C. 1.12 D. 1.8397
Mathematics