Question

WILL MEDAL!

Which decimal is equivalent to 5 9/20
A.
5.95
B.
5.45
C.
5.92
D.
5.9

Answer 1

@31356 PLEASE HELP :)

Answer 2

I think it might be B. if not I am sorry!D:

Answer 3

5.45

Answer 4

Yeaaaa I got it right X"D

Answer 5

what you do is divide 9 by 20, which gives you .45

Answer 6

Then add 5 back in!

Answer 7

An easy way to do this without a calculator is to find what multiplied by 20 is 100. The answer is 5. So multiply 5 times your numerator as well, and you get 45. 45/100. From there you can easily see that 45/100 = 0.45. The add the 5 to that. 5.45.

Answer 8

Thank you :)

Answer 9

Of course, sometimes it's not easy if you can't easily identify a multiple of your denominator that will make it equal 100. But for a denominator like 20, it's easy to see that 5*20 = 100.

Answer 10

I should say scalar, not multiple...

Answer 11

Could you also help me with this one?

Becca's family has 4 gallons of milk. They drink 5/8 gallon per day. How long will their milk last?









A.
4 5/8days










B.

2 1/2 days










C.

4 days










D.

6 2/5days

Answer 12

ps sorry for all the double spacing

Answer 13

So do the math, (4) / (5/8) = ?

Answer 14

????I I don't get it????

Answer 15

Alright, so this problem involves something called "dimensional analysis." It is where you use conversion factors to convert from one unit to another. In this case, you are converting 4 gallons of milk into number of days the milk will last. You start at the left side with 4 gallons. The conversion is that they drink (5/8) gallons in 1 day. You set up your dimensional analysis so that your units cancel. I.e., you if you start with gallons, you need to multiply it by the conversion factor that has gallons in the denominator, so when you multiply across, those units cancel, and you are left with days.

Answer 16

WOW!!! now I really don't get it

Answer 17

\[4 gallons \times \frac{1 day}{\frac{5}{8}gallons} = \frac{4gallons\times1day}{\frac{5}{8}gallons} = \frac{4\times1day}{\frac{5}{8}}\]

Answer 18

Can you make sense of that sequence of steps?

Answer 19

no :(
im not tring to get the answer out of you or anything I just don't get it :(

Answer 20

\[= \frac{4 days}{\frac{5}{8}} = \frac{4days}{1}\times\frac{8}{5} = \frac{32days}{5} = \frac{32}{5}days\]

Answer 21

That's okay. What grade level is this course? I think I am explaining it as if it were a college chem class. Perhaps someone else can put it in terms you will understand better than I can. But your answer is 32/5.

Answer 22

Try to make sense of the steps I wrote from left to right.

Answer 23

thank you :) and its 6th

Answer 24

Oh wow, well you're doing great! :)

Answer 25

(ps its not one of the options :( )

Answer 26

is 6.4 an option?

Answer 27

6 2/5
ps 6 is big number and 2/5

Answer 28

I see. So 32 / 5 = 6 and 2/5

You see that 5 goes into 32 6 times, right? and you are left with 2/5