MHB How Do You Correctly Round Decimals for Econ Homework?

[ineedhelpnow]

hi (Wave)
ok so this is very embarrassing that i have to ask this but I am doing my econ homework and i have to plot points. i need to round the numbers 8.15342 and 6.457 to the nearest tenth of a decimal. the grading system is really weird so one time itll be like no the answer is 8.1 and another time itll say its 8.2. i only have one chance left and i have to get this right. sooooo please help me...

 

[ineedhelpnow]

just found out my calculator has a rounding function...

 

[I like Serena]

So you're done? (Wondering)

 

[ineedhelpnow]

yeah it was 0.65 and 0.82. (Nod) must be very careful on those assignments. they deduct for anything.

 

[MarkFL]

yeah it was 0.65 and 0.82. (Nod) must be very careful on those assignments. they deduct for anything.

Surely, you mean 6.5 and 8.2? (Smoking)

 

[ineedhelpnow]

oh yeah my bad. the decimal values are .65 and .82 but as percentages it would be 6.5 and 8.2

 

[MarkFL]

oh yeah my bad. the decimal values are .65 and .82 but as percentages it would be 6.5 and 8.2

To convert decimals to percentages, you have to move the decimal point two places, since $100=10^2$.

$$0.65=65\%$$

$$0.82=82\%$$

 

[ineedhelpnow]

well originally it was 0.065 and 0.082 but i forgot the zeros and i didnt feel like going back to fix em

 

[MarkFL]

well originally it was 0.065 and 0.082 but i forgot the zeros and i didnt feel like going back to fix em

Okay, then all is good. (Yes)