Last year, for every 100 million vehicles that traveled on a certain highway, 96 vehicles were involved in accidents. If 3 billion vehicles traveled on the highway last year, how many of those vehicles were involved in accidents? (1 billion = 1,000,000,000)
Choose the correct answer:
A) 288 B) 320 C) 2,880 D) 3,200 E) 28,800
To solve we will set up a proportion. We know that “100 million vehicles is to 96 accidents as 3 billion vehicles is to x accidents”. To express everything in terms of “millions”, we can use 3,000 million rather than 3 billion. 2,880reating a proportion we have:   100/96 = 3,000/x   2,880ross multiplying gives us:   100x = 3,000 * 96   x = 30 * 96 = 2,880   2,880orrect answer is 2,880.
<result>C</result>
Last year, for every 100 million vehicles that traveled on a certain highway, 96 vehicles were involved in accidents. If 3 billion vehicles traveled on the highway last year, how many of those vehicles were involved in accidents? (1 billion = 1,000,000,000)