Answers:
1. The ratio of buses to cars can be expressed as 2x: 23x. We can
write an equation that represents the fact that there are 630 fewer
buses than cars: 2x + 630 = 23x.
Solving this equation for x yields the following:
2x + 630 = 23x
630 = 21x
30 =

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Answers:
1. To find the probability that two independent events will occur,
one after the other, multiply the probability of the first event by the
probability of the second event.
Probability of a non-nickel on first pick = (5 pennies + 4 dimes) /
15 coi

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platform is designed specifically for the Internet Explorer web
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supported.)
In order to ensure an optimal simulated

Answers
1. The number of integers between 51 and 107, inclusive, is (107 51) + 1 = 57.
The correct answer is D.
2. One way to attack a problem like this is to write out each decimal
completely, as follows:
(A) .000008 [5 zeroes after the decimal point, fo