Solve the problem.A hockey team in one game scored on 20% of the total number of shots on its opponent's goalie. If the team scored a total of 8 goals, then how many shots did they direct at the opponent's goalie?
A. 60
B. 20
C. 80
D. 40
Answer: D
Mathematics
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Solve.How long will it take for the population of a certain country to double if its annual growth rate is 6.4%? Round to the nearest year. Use the exponential growth model P(t) = P0ekt.
A. 5 yr B. 1 yr C. 11 yr D. 31 yr
Mathematics
Write the number in scientific notation.0.00006402
A. 6.402 × 10-5 B. 6.402 × 105 C. 6.402 × 10-4 D. 6.402 × 104
Mathematics
Solve the problem.Andy has 31 coins made up of quarters and half dollars, and their total value is $11.00. How many quarters does he have?
A. 23 quarters B. 15 quarters C. 13 quarters D. 18 quarters
Mathematics
Factor. Check by multiplying.45 - 10x
A. 5(9 - 2x) B. 5(9 - 10x) C. 5(2 - 9x) D. (9 - 2)5x
Mathematics