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3 years ago

Mr. Levine corrects 7 tests in 25 minutes. At this rate, how long would it take him to correct 120 tests?

Mathematics

2 answers:

STALIN [3.7K]3 years ago

8 0

Answer:

428 4/7ths minutes

Step-by-step explanation:

erik [133]3 years ago

8 0

Answer: 7 hours and 8 minutes

Step-by-step explanation:

7 tests in 25 minutes

7 divided by 25= 3.57

3.57 minutes per test times 120 tests= 428.57 minutes

428.57 divided by 60 (60 minutes in an hr) = 7 hours and 8 minutes (and 57 seconds if u want to count those too)

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3 years ago

PLEASE HELP

GrogVix [38]

Since the domain are the x-values of the function, we need to find the y-values using those x-values.
- for x= $\frac{1}{2}$ , $log x_{2} ( \frac{1}{2} )=-1$ . Now we have our first ordered pair: $( \frac{1}{2} ,-1)$
- for $x=1$ , $log_{2} (1)=0$ which gives us our next ordered pair: $(1,0)$
- for x=2, $log_{2} (2)=1$ , so (2,1)
- for x=4, $log_{2} (4)=2$ , so (4,2)
- for x=8, $log_{2} (8)=3$ , so our last order pair is (8,3)

Finally we can plug the points and joint them to create our graph:

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