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Please remind me how to clear decimals?
I forgot how to do this simple thing:
.7x+.1(100-x)=60
if I wanted to clear the decimals how would I know how much to multiply it by (all the terms)? Is it 100 or 10? How do I know which one to use?
Silly, but I forgot...
2 Answers
- 1 decade agoFavorite Answer
number of zeros after 1 = greatest number of digits after the decimal point
so since your problem contains .7 and .1 you multiply by 10.
if it were .07 and .1 you multiply by 100. [ in this case greatest number of digits after decimal point (in .07) = 2 ]
- 1 decade ago
it would be 10 as the farthest digit to the left of any of your decimals is in the tenths place
