Question

Hao's dog ate 50 cans of dog food in 31 days. How many cans should Hao buy to feed his dog for the next 6 days

Answer 1

You need a unit rate. Calculate "Cans / Day"

Answer 2

ik that but i need the answer.

Answer 3

Well, work it out. Let's see your best efforts. What do you get for "cans / day" based on the given information.

Answer 4

40cans/31 days

Answer 5

so... lemme thinkkk...

Answer 6

That's "canS / dayS". Now, calculate "cans / DAY" How many cans in just one day. This is the crux of the problem.

Answer 7

well as i divide its a repeating decimal.

Answer 8

Sweet. So, what is it?

Answer 9

do i estimate? (round)

Answer 10

Doesn't much matter, so long as you have a valid rate. Carry enough decimal places to make your result meaningful. If we're talking about cans of dog food over a week or so. 2-3 decimal places should be more than enough.

Answer 11

So if I get 1.290322508........ and I just round to 1.29 is that good enough?

Answer 12

Can's of dog food don't come in ½ or ¼, so the task is to find the right INTEGER.

That's cans / day. Multiply by the number of days and you're almost done.

Answer 13

I learned about integers a loong time ago but i cant remember.

Answer 14

No worries. We can take a non-integer first. Then we'll worry about it.

Answer 15

Can you just give me the answer please because i have 4 more hw packets and i really need to finish them

Answer 16

Already provided the method. Just do it.

That's cans / day. Multiply by the number of days and you're almost done

Answer 17

When you started talking abou integers i got confused so..

Answer 18

Okay, produce the answer without that concern and we can have that other conversation immediately following.

Answer 19

So far i just have 7.74 as my answer.

Answer 20

so do i round or do i keep the decimal

Answer 21

50/31 = 1.6129032258064516129032258064516

1.6129 will do.

6*(1.6129) = 9.6774

How did you get 7.74?

Answer 22

I multiplied 1.29 6 times

Answer 23

I see. You're using 40/31. That's an error. It should be 50/31. Sorry I didn't see that earlier. Good work writing it down so I could find the error, though!

Answer 24

oh the question is wrong i meant 40/31

Answer 25

Okay, then: 40/31 = 1.2903225806451612903225806451613

1.29 should do.

6*1.29 = 7.74 -- Just as you have it.

Now for the integer. You CANNOT buy 7.74 cans. You must buy 8. You cannot get away with buying 7. Your dog will go hungry!! That would be cruel.

That's it.

Answer 26

thank you for your time i hope you didnt have aynything important

Answer 27

Note:

6*1 = 6 -- No good.
6*1.3 = 7.8 -- Okay
6*1.29 = 7.74 - Okay
6*1.2903 = 7.7418 -- Okay

Rounding is important. If you round the RATE to Integer, your dog goes hungry. Just one decimal place was enough to cover this one for only 6 days.

Answer 28

I did have important things to do - helping you. That's why I'm here.