Julia studied math for 3 1/3 hours during the 4 days before her last math test. What was the average amount of time she studied
1 answer:
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Answer to A:
50%
Explanation for A:
We're looking for how many numbers are odd, so theres 1, 3, 5 ,7, four numbers.
We have a total of 8 numbers.
To make any number a percent we move the point over to the right by two, which makes our final answer 50%
Answer to B:
37.5%
Explanation for B:
If the number is less than four, that means we need to find if it will roll the first three numbers. We, once again, have eight total possibilities
0.375 can be turned into our final answer, 37.5%
Answer:
x=27
Step-by-step explanation:
To evaluate the expression:
Step 1: Innermost group, apply the product of powers (
Therefore:
We then have:
Step 2: Apply the power of a power
Step 3: Apply the negative exponent
Step 4: Simplify
Therefore, the value of x in the simplified expression is 27.