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Mathematics, 06.10.2019 06:30 marcusajns
1) target sells 24 bottles of water for $3 and 36 bottles of water for $4. which is the better buy and by how much?
a) 24 bottles for $3 by 1.5¢ per bottle
b) 24 bottles for $3 by 70¢ per bottle
c) 24 bottles for $3 by 75¢ per bottle
d) 36 bottles for $4 by 1.4¢ per bottle
2) an ice machine uses 3 gallons of water every 9 hours. how many gallons of water does it use each hour? how many hours does it take to use one gallon? a) 1/9 gallons per hour; 1 hour
b) 1/3 gallons per hour; 3 hours
c) 3 gallons per hour; 1/9 hour
d) 1/3 gallons per hour; 1/3 hour
3) if a dozen eggs cost $1.35, what is the unit cost?
a) $0.11
b) $0.13
c) $1.23
d) $4.29
4) suppose anna earns $38.50 to walk the neighbor's dog 7 hours during the week. how much does anna earn per hour?
a) $4.25
b) $4.80
c) $5.50
d) $5.75
5) which ratio is equivalent to the unit rate of "30 miles 1 gallon"? how was the unit rate transformed into the equivalent ratio?
a) "3 gallons 10 miles; " by dividing the numerator and denominator of the unit rate by 10.
b) "90 miles 5 gallons; " by multiplying the numerator and denominator of the unit rate by 3.
c) "6 gallons 180 miles; " by multiplying the numerator and denominator of the unit rate by 2.
d) "180 miles 6 gallons; " by multiplying the numerator and denominator of the unit rate by 6.
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1) target sells 24 bottles of water for $3 and 36 bottles of water for $4. which is the better buy a...
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