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5 votes
If 2/3 inch on a map corresponds to an actual distance of 9 miles what distance on the map will represent 21 miles

User Shwetal
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1 Answer

5 votes
2/3in=9mi
?in=21mi

we can set up a ratio and proportion, but I would fix that fractions because they tend to be messy

2/3in=9mi
multiply both sides by 3
2in=27mi

so now we have
2in:28mi=?in:21mi

(2in)/(28mi)=(?in)/(21mi)
multiply both sides by 21mi
the miles cancel and we get

(42in)/(28)=?in
1.5in=?in

1.5 inches represents 21 miles
User Ydhem
by
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