I need help with practice problems!

[u/IcyTemperature3460]

It’s for a unit titled “conversions and geometry”

Here’s where I’m stuck:

You travel 320 miles over the course of 2 days.

a) How many miles are you traveling per day? How many days per 1 mile

b) You need to travel 930 miles to reach your destination. How many miles per day do you need to travel to get there in 5 days?

For the first one, I’m pretty sure the division gives me 160 miles per day and 0.00625 days per 1 mile. But for b…

I thought it would be 186 (930/5), but in class notes say 235

Whats accurate? How do I get the right answer?
Thanks!

[u/nir-nirfo]

Check the units: miles divided by days gives miles per day. Then multiply your proposed daily rate by 5. Does that get you back to the stated 930 miles? Do the same check with 235. That will tell you whether the notes fit the question, without needing a different formula.