Eduardo spent 35% of his time at the theme park on roller coasters. If he was there for 8 hours, how much time did he spend on roller coasters?

Question

mathmale · Answer

"35% of his time" translates into 0.35 times 8 hours.  What's that?

anonymous · Answer

2.8

anonymous · Answer

right?

anonymous · Answer

it is 2.8?

anonymous · Answer

correct

anonymous · Answer

so he spent 3 hours and 20 minutes there

mathmale · Answer

What are the units of measurement?  Your answer's not complete without them.

mathmale · Answer

Please show your math:  0.35 times 8 hours.

mathmale · Answer

Use a calculator if you wish.  Or multiply by hand:$$\frac{ 35 }{ 100 }*8$$

anonymous · Answer

it is 2.8?

mathmale · Answer

Jessica, you were correct to begin with.  What are the proper units of measurement?

mathmale · Answer

Yes, this person spent 2.8   .... what? ....  on roller coasters.

jchick · Answer

What you have here is 168 min or 2 hours and 20 min. Because if you multiply 0.35 by 8 than you will get 2.8 which means that there were two hours and 20 min.

anonymous · Answer

2.8 time on the roller coaster?

mathmale · Answer

2.8 hours.

J-Chic:  Try again.  0.8 hours is equivalent to more than 20 minutes.

anonymous · Answer

he spent 2 hours and 80 minutes so you must make your minute less than 60 (because there is only 60 minutes in a hour not 80)

jchick · Answer

Sorry I typed that wrong

mathmale · Answer

Hippo:  No.  You mean that this person spent 2.8 hours, which means 2 hours plus 0.8 hour, NOT 80 minutes.   Fix this, please.  How many minutes in 0.8 hour?

jchick · Answer

The first part was correct on mine because I said 168 min. This translates to 2.8 hours.

jchick · Answer

Now 2.8 hours equals 48 min

mathmale · Answer

True, but normally we'd say "2 hours,   xxx minutes."  
How many min. in 0.8 hour?

jchick · Answer

Sorry 2 hours and 48 min

mathmale · Answer

Gotcha.

mathmale · Answer

thanks for sticking with this.

anonymous · Answer

thank you

jchick · Answer

Yeah I realized I had made a mistake lol I don't know why I wrote 20 min the first time.

jchick · Answer

Just a tired mistake I guess! lol

mathmale · Answer

To err is human, to forgive divine.  ;)

jchick · Answer

True.

anonymous · Answer

thank you mathmale

mathmale · Answer

My pleasure!  Bye!

anonymous · Answer

bye