Answer:
$18
Step-by-step explanation:
For an approximation, we can start by rounding the number. In this case, you're probably expected to round to the nearest 1. 90.32 rounds down because 3 is less than 5. This leaves us with 90.
A good way to approximate this is to figure out what 10% is. You can do this by sliding the decimal over one place value.
10% of 90 is 9
10% + 10% = 20%
So we can add our two 10%'s together to find 20%
9 + 9 = 18
$18 is the tip
(I checked our work with the actual numbers and it checks out as a good approximation)
90.32 x .2 = 18.06
Answer: Choice B) experimental probability is larger
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There are 3 odd numbers (1,3,5) out of 6 total (1,2,3,4,5,6) on the number cube. So theoretically, the chances of rolling an odd number are 3/6 = 1/2 = 0.5
When we do the experiment, we roll an odd number 325 times out of 500 trials total. So the experimental probability is 325/500 = 0.65
Comparing the results of 0.5 and 0.65, we see that 0.65 is larger. So the experimental probability is larger.
Note: with a large number of trials, the experimental probability should get closer and closer to the theoretical probability. This is assuming that all trials are independent of one another and the number cube is properly weighted.
Answer:
1 whole one and a third of one.
Step-by-step explanation:
1 1/3 of a granola bar