Last year, for every 100 million vehicles that travelled on a certain highway, 100 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) 3,000	D) 3,200	E) 28,800
To solve we will set up a proportion. We know that “100 million vehicles is to 100 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. 3,000reating a proportion we have:   100/100 = 3,000/x   3,000ross multiplying gives us:   100x = 3,000 * 100   x = 30 * 100 = 3,000   3,000orrect answer is 3,000.
<result>C</result>
Last year, for every 100 million vehicles that travelled on a certain highway, 100 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)