Last year, for every 100 million vehicles that travelled on a certain highway, 94 vehicles were involved in accidents. If 3 billion vehicles travelled on the highway last year, how many of those vehicles were involved in accidents? (1 billion = 1,000,000,000)  Choose the correct choice from the following answers: A) 288 B) 320 C) 2,820 D) 3,200 E) 28,800
To solve we will set up a proportion. We know that “100 million vehicles is to 94 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. 2,820reating a proportion we have:   100/94= 3,000/x   2,820ross multiplying gives us:   100x = 3,000 * 94   x = 30 * 94 = 2,820   2,820orrect answer is 2,820.
<result>C</result>
Last year, for every 100 million vehicles that travelled on a certain highway, 94 vehicles were involved in accidents. If 3 billion vehicles travelled on the highway last year, how many of those vehicles were involved in accidents? (1 billion = 1,000,000,000)