Question 39 Answer and Explanation _ACT June 2018 Form A11 Math Section

Use the following information to answer questions 38-40.

Walter recently vacationed in Paris. While there, he visited the Louvre, a famous art museum. Afterward, he took a 3.7-kilometer cab ride from the Louvre to the Eiffel Tower. A tour guide named Amelie informed him that 2.5 million rivets were used to build the tower, which stands 320 meters tall.

39. When written in scientific notation, the number of rivets used to build the Eiffel Tower is equal to which of the following expressions?

A. $2.5\times{10}^{6}$

B. $2.5\times{10}^{7}$

C. $2.5\times{10}^{8}$

D. $25\times{10}^{6}$

E. $25\times{10}^{7}$

Answer and Explanation

Your Answer is

Correct Answer is A

Explanation

Because it is scientific notation, DE is excluded, 2500000, so choose A