1. If y<span>ou have jogged 5 miles from the park at a rate of r miles per hour, then the time you need to do this is
hours (
, where S is distance, v-speed and t-time).
</span>
2. W<span>hen you run back to the park, your average speed increases by 1 mph and become r+1 mph.
</span>
3. I<span>t takes
hours to jog 5 miles back to the park</span>
4. T<span>he total jogging time T is
hours.</span>
<span />
5. If you jogged away from the park at an average speed of 4 miles per hour, then r+1=4 and r=3. The expression
will take look
<span>
hours.</span>
<em>Answer</em>
<em><u>Given</u></em>
<em>the relative frequency tables in the figure below (Note: the tables are not in the same order as in the problem statement)</em>
<em />
<em><u>Find</u></em>
<em>which table is best suited to answer the question</em>
<em />
<em>A) the percentage of home viewers who prefer to watch horror movies </em>
<em />
<em>B) the percentage of people surveyed who prefer to watch comedy movies at home </em>
<em />
<em>C) the percentage of viewers with a preference for drama who watch at the theater </em>
<em />
<em><u>Solution</u></em>
<em>The figure shows the best choices for answering A, B, and C.</em>
<em />
<em>table 2 is best for A (it is normalized by viewing location)</em>
<em />
<em>table 3 is best for B (it is normalized over the whole sample)</em>
<em />
<em>table 1 is best for C (it is normalized by genre)</em>
(3x+5)(X+3) would be the factored form
15x+$38.50=$100
x being however much she can spend on each friend
x= $12.30 if you need that too
Answer:
a) two
b) S = {Orange, Purple}
c) 50%
d) 50%
Step-by-step explanation:
a)
When a marble is drawn from the jar, there are <u>two</u> possible outcomes. Either the marble will be orange or it will be purple.
b)
A sample space is a set of all possible outcomes of an event. Thus, the sample space in this case will be:
<u>Sample Space = {Orange, Purple}</u>
c)
The probability of an event is given as the number of favorable outcomes divided by the number of total outcomes.
Therefore,
Probability of selecting orange marble = P(Orange) = 1/2
<u>P(Orange) = 0.5 = 50%</u>
d)
Probability of selecting purple marble = P(Orange) = 1/2
<u>P(purple) = 0.5 = 50%</u>
