A farmer is going to plant carrots on 4 3/10 acres, corn on 4 7/30 acres and peppers on 2 7/15 acres. If each acre requires 25 b
ags of fertilizer, how many bags of fertilizer does the farmer need to plant all the acres?
1 answer:
To convert mixed fractions to improper fractions:
a b/c=(ac+b)/c so we have:
43/10+127/30+37/15 now making all terms have a common denominator of 30
(43/10)(3/3)+(127/30)(1/1)+(37/15)(2/2)
129/30+127/30+74/30
(129+127+74)/30
330/30
11 acres
Now
11a(25b/a)=275 bags of fertilizer.
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