doreen is a chemist. she needs to prepare 36 ounces of a 11% hydrochloric acid solution. find the amount of 18% solution and the amount of 9% solution she should mix to get the needed solution how...
doreen is a chemist. she needs to prepare 36 ounces of a 11% hydrochloric acid solution. find the amount of 18% solution and the amount of 9% solution she should mix to get the needed solution how...
norman and suzanna own 41 shares of a fast food restaurant stock and 69 shares of a toy company stock. at the close of the markets on a particular day in 2004, their stock portfoloio consisting of...
You are shopping at a nutritional supplement store for whey protein. the original price of the protein is $39.99. You have a discount card that gives 20%off the purchase price. You also have a $10...
In physics, transitional kinetic energy E(in joules) is given by the equation: E=1/2mv2,where m represents mass(in kilograms), and v the velocity (in meters per second). Find the velocity of a thrown...
n number of persons decided to raise Rs 3lakh by equal contribution from each had they contributed Rs 50 each extra the contribution would have been Rs 3.25lac how many persons are there i...
a piece of cloth cost Rs 35 if the length of the piece would have been 4 meter longer and each meter costs rs 1 less the cost would have remained unchanged how long is the price can...
On Jerry's text messaging phone plan, he paid $1.35 for every 30 messages he sent. What is the his cost per message? dollars Write your rounded answer as a decimal to 3 places....
I don't know the answer....
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A stone mason has enough stones to enclose a rectangular patio with a perimeter of 60ft, assuming that the attached house forms one side of the rectangle. What is the maximum area that the mason can...
Three workers sort 66 boxes in a day. One of the workers is three times more productive than the second worker and twice as productive as the third worker. How many boxes did the second most productive...
As compared to its first year of operation, ABC Company grew 8% in the second year and an additional 2% per year for the next two years. If total growth for years 2-4 was $45,000 over the first yearâ€™s...
Working together, it takes two different sized hoses 30 minutes to fill a small swimming pool. If it takes 50 minutes for the larger hose to fill the swimming pool by itself, how...
A coaxial power cable has a central wire with radius R1=0.26 centimeters. It is insulated from a surrounding shield with inside radius R2= 2 centimeters. The maximum voltage the cable can withstand...
it takes me 30 minutes to walk home and my brother 40 minutes. if he left 8 minutes early how long will it take me to catch up? please explain how you got this.
Veronica and Wallace are playing a game where each person takes turns naming a date of the year. After one person names a date, the next person must give a later date in the same month, or the same...
Two jets leave an air base at the same time and travel in opposite directions. One jet travels 83 mph slower than the other. If the two jets are 6005 mi apart after 5 hours, what is the rate of each...
The sum of eight times a number and seven times its reciprocal is 225/13.
at a ski resort one family pay $1,045 for 3 nights of lodging and 8 ski lift passes. Another family pays $1,305 for 3 nights of lodging and 12 ski lift passes.
This is a word problem that states: "The ratio of two numbers is 3:4. Their sum is to the sum of their squares as 7 is to 50. Find the numbers. (Hint: The sum of their squares would be (3x)^2...