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?
c.30 - x
b.30 Auto answered|Score .6|rio8408|Points 400|User:
p = $14,300
r = 7 1/2%
t = 4
What is i?
i = $4,290.00Auto answered|Score 1|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?
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. ] Auto answered|Score 1|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?
20% * 25 + 30% * x = 27% * (25 + x),
5 + 0.3x = 6.75 + 0.27x,
0.03x = 1.75,
x = 58.33. Ans:58.33 poundsAuto answered|Score .8372|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?
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 Auto answered|Score .9868|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?
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
] Auto answered|Score 1|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?
15Auto answered|Score .9427|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
0.02x + 0.04(x + 800) = 112 Auto answered|Score .9888|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%Auto answered|Score 1|aaaaaaaaaaaaaaa|Points 3996|User:
p = $300
r = 7%
t = 2
What is i?
i = $42.00Auto answered|Score .6|japs2310qa|Points 1430|User:
i = $125
r = 6%
t = 1
What is p?
p = $2,083.33Auto answered|Score 1|japs2310qa|Points 1430|User:
40 is what percent of 50?
we find percentage by dividing the given value by total value then multiplying it by 100
( given/ total) *100
=(12/ 80) *100
=.15 * 100
= 15% Auto answered|Score .428Note:
I'm sorry that that wasn't a good answer. Please hold on while I contact an expert.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?
Answer is b. $63.75Expert answered|spyderman|Points 270|
All Categories|No Subcategories|Expert answered|Rating 1| 3/14/2012 1:51:05 PM