Answer:
hours
Step-by-step explanation:
Whenever 2 quantities (suppose a and b) are inversely proportional to each other, we can write an proportionality equation (with k as proportional constant) as:

Since, here t is INVERSELY PROPORTIONAL to r, we can say:

Firstly, we have t = 2 hour and r = 40 mph, so we find k:

Now, secondly, we have r = 45 and k = 80, we need to find t:

So, it would take
hours
Answer
77
Step-by-step explanation:
You add how much she earns a week with 32 because she earns $1 dollar per book.
C , i dont know if it’s right but it’s the only table with the same number on the bottom . and same number in general
Answer: 22.5 kg
Step-by-step explanation:
You did not attach a question, so I'm going to assume that it is asking for the maximum weight of a suitcase in kilograms.
Answer:
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Step-by-step explanation
it is a vertical line and has no defined slope