Question and answer
A mixture of 30 pounds of candy sells for $1.10 a pound. The mixture consists of chocolates worth $1.50 a pound and chocolates worth 90¢ a pound. How many pounds of the $1.50 chocolate were used to
make the mixture? If x represents the pounds of $1.50 chocolates used, then which of the following represents the pounds of 90¢ chocolates used? a.x b.30 c.30 - x
b.30
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User: A mixture of 30 pounds of candy sells for $1.10 a pound. The mixture consists of chocolates worth $1.50 a pound and chocolates worth 90¢ a pound. How many pounds of the $1.50 chocolate were used to make the mixture? If x represents the pounds of $1.50 chocolates used, then which of the following represents the pounds of 90¢ chocolates used? a.x b.30 c.30 - x

Weegy: b.30
rio8408|Points 400|

User: p = $14,300 r = 7 1/2% t = 4 What is i? a.$4.29 b.$429.00 c.$4,290.00

Weegy: i = $4,290.00
caligun|Points 1291|

User: Brine is a solution of salt and water. If a tub contains 50 gallons of a 5% solution of brine, how much water must evaporate to change it to an 8% solution? a.81.25 gallons b.62.50 gallons c.18.75 gallons

Weegy: The answer is 18.75 gallons. 50 lbs of 5% brine sol? 5/100 x 50 = 250/100 = 2.5 lbs brine rest will be water i.e. [ 95% water = 50 - 2.5 = 47.5 lbs evaporation will reduce water not brine. 8% of 'a' = 2.5 a = 2.5 x 100/8 = 31.35 lbs the solution reduced from 50 to 31.35 50 - 31.35 = 18.75 lbs of water was evaporated. ]
missgeeklover|Points 60|

User: How much of an alloy with 30% copper must be added to 25 pounds of a second alloy which is 20% copper to create a 27% alloy? a.33.85 lb b.58.33 lb c.391.67 lb

Weegy: 20% * 25 + 30% * x = 27% * (25 + x), 5 + 0.3x = 6.75 + 0.27x, 0.03x = 1.75, x = 58.33. Ans:58.33 pounds
shifa saleheen|Points 9557|

User: An alloy of tin is 15% tin and weighs 20 pounds. A second alloy is 10% tin. How many pounds of the second alloy must be added to the first to get a 12% mixture? a.30 lb b.40 lb c.60 lb

Weegy: The answer would be 30 lbs. 15*20+10*x=12(20+x) 300+10x=240+12x 10x-12x=240-300 -2x=-60 /-2 x= 30 pounds 10 % Alloy II
shifa saleheen|Points 9557|

User: To reduce 16 ounces of a 25% solution of antiseptic to a 10% solution, how much distilled water should a nurse add? a.12 oz b.24 oz c.36 oz

Weegy: Let x represent the amount of distilled water in ounces (Distilled water is a 0% solution of antiseptic) .25(16) + 0x = .1(16 + x).... 4 + 0 = 1.6 + .1x.... 4 - 1.6 = .1x.... 2.4 = .1x.... 2.4/.1 = x.... 24 = x.... The nurse should add 24 oz of [ distilled water ]
shifa saleheen|Points 9557|

User: An alloy of tin is 15% tin and weighs 20 pounds. How many pounds of tin are in the alloy? a.3 lb b.15 lb c.20 lb

Weegy: 15
krys2130|Points 40|

User: A man invests a certain amount of money at 2% interest and $800 more than that amount in another account at 4% interest. At the end of one year he earned $112 in interest. How much money was invested in each account? Which of the following equations could be used to solve the problem? a.0.02x + 0.04(800) = 112 b.0.02x + 0.04(x + 800) = 112 c.0.04x + 0.02(x + 800) = 112

Weegy: 0.02x + 0.04(x + 800) = 112
debnjerry|Points 28205|

User: A man earns $112 interest in one year on an investment of $1,400. What was his rate of interest? a.8% b.10% c.12%

Weegy: a.8%
aaaaaaaaaaaaaaa|Points 3996|

User: p = $300 r = 7% t = 2 What is i? a.$4.20 c.$42.00 b.$420.00

Weegy: i = $42.00
japs2310qa|Points 1430|

User: i = $125 r = 6% t = 1 What is p? a.$56.25 b.$2,027.08 c.$2,083.33

Weegy: p = $2,083.33
japs2310qa|Points 1430|

User: 40 is what percent of 50? a.8% b.12.5% c.80% d.125%





Weegy: Answer is C. 80%
Expert answered|spyderman|Points 270|

User: What is the sale price of a cell phone that is on sale for 15% off if the regular price is $75? a.$60.00 b.$63.75 c.$64.25

Weegy: Answer is b. $63.75
Expert answered|spyderman|Points 270|

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Asked 3/14/2012 1:51:05 PM
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