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Question 1099061: You need a 80% alcohol solution. On hand, you have a 60 mL of a 5% alcohol mixture. How much pure alcohol will you need to add to obtain the desired solution?
Click here to see answer by josmiceli(19441)

Question 1099275: A rock is thrown upward with a velocity of 25 meters per second from the top of a 20 meter high cliff, and it misses the cliff on the way back down. When will the rock be 7 meters from the water, below? Round your answer to two decimal places
Click here to see answer by josmiceli(19441)

Question 1099304: A family's monthly income is $2,800 and they spend $700each month on food. Write the amount they spend on food as a fraction of their monthly income in lowest terms.
Click here to see answer by Theo(13342)

Question 1099305: 8/5 x (-6/5) x 8/5
Click here to see answer by Alan3354(69443)

Question 1099437: How many g of gold should a coin of 59% gold be it when combined with a 9 g pure gold necklace it forms a metal that is 74% gold?
Click here to see answer by jorel1380(3719)

Question 1099581: Please help me solve this problem Mixtures A and B contain baking soda. Mixture A is 12% baking soda and Mixture B is 25% baking soda.
How many ounces of the 12% mixture must be added to 130 ounces of the 25% mixture to produce 52 ounces of baking soda in the final solution?
Click here to see answer by josmiceli(19441)

Question 1099782: Justin's boat travels 72 km downstream in 3 hours and it travels 80 km upstream in 4 hours.
Find the speed of the boat and the current

Thank you!!!
Click here to see answer by ikleyn(52782)

Question 1099783: I swatted 36 flies buzzing around, which is 5/9 of them. how many flies were there originally flying around?
Click here to see answer by richwmiller(17219)

Question 1099781: a concert venue sold 1700 tickets one evening tickets cost $25 for a covered pavilion seat and 15 for a lawn see a total of $33,000. how many of each type of ticket were sold
Click here to see answer by ikleyn(52782)

Question 1099870: Dan needs 4 lb of metal with 35 % silver. If Dan combines
one metal with 24 % silver, and another with 68
% silver, how much of each metal does Dan need?
Click here to see answer by jorel1380(3719)

Question 1099956: A family decides that they can spend 3/7 of their monthly income on house payments. If their monthly income $1,190 , how much can they spend for house payments?
Click here to see answer by Alan3354(69443)

Question 1099983: A boat going upstream on The River averages 3 mph. Going downstream, the boat averages 7 mph. Find the speed of the current and the speed of boat in still water.
Click here to see answer by Alan3354(69443)

Question 1099984: Entrance tickets for a carnival are $8 for children and $13 for adults. If one evening 867 tickets were sold with total receipts of $8381, how many children and how many adults entered the carnival?
Click here to see answer by rfer(16322)

Question 1099982: Nutz-R-Us sells cashews for $6.60 per pound and Brazil nuts for $4.20 per pound. How much of each type should be used to make a 47 pound mixture that sells for $5.48 per pound?
Click here to see answer by josgarithmetic(39617)

Question 1100217: Please help me, I'm having trouble setting up the equation. I tried this equation & I'm getting a negative number. .3x + .15 x 10 = .4
How much of a 30% acid solution should be mixed with 10L of a 15% acid solution to obtain a 40% acid solution?
Click here to see answer by Alan3354(69443)

Question 1100328: Shortly after 5 O�clock, when the minute hand and the hour hand of the clock made a 90 degree angle, Ian went out to walk the dog. On his return after 5:30 the two hands again made a 90 degree angle. For how many minutes was Ian out with his dog?
Click here to see answer by richwmiller(17219)

Question 1100532: what is the percentage of the combination of 8 gallons of 17% mix with 12 gallons of 40% mix?
Click here to see answer by Fombitz(32388)

Question 1100532: what is the percentage of the combination of 8 gallons of 17% mix with 12 gallons of 40% mix?
Click here to see answer by josgarithmetic(39617)

Question 1100729: to make a 10% acid solution for chemistry class, Xavier wants to mix some 5% solution with 10L of 20% solution. How many liters of 5% solution should he use?
Click here to see answer by josgarithmetic(39617)

Question 1100733: You need 600 mL of a 45% alcohol solution. On hand, you have a 30% alcohol mixture. You also have a 70% alcohol mixture. How much of each mixture will you need to add to obtain the desired solution?
Click here to see answer by ikleyn(52782)

Question 1100734: A store owner want to develop a new snack mix by mixing chocolate and trail mix. How many pounds of chocolate costing $19.10 per pound should be mixed with trail mix costing $4.10 per pound to create a 31 pound mixture worth $8.94 per pound. (round to the nearest pound)
Click here to see answer by richwmiller(17219)

Question 1100739: A store owner want to develop a new snack mix by mixing chocolate and trail mix. How many pounds of chocolate costing $14.50 per pound should be mixed with trail mix costing $4.40 per pound to create a 40 pound mixture worth $8.19 per pound. (round to the nearest pound)

Click here to see answer by richwmiller(17219)

Question 838678: I have a 300ml solution of 14% bleach but need to make it into 10% how much water do I add?
Click here to see answer by amalm06(224)

Question 838678: I have a 300ml solution of 14% bleach but need to make it into 10% how much water do I add?
Click here to see answer by ikleyn(52782)

Question 1098393: You need a 65% alcohol solution. On hand, you have a 390 mL of a 10% alcohol mixture. You also have 95% alcohol mixture. How much of the 95% mixture will you need to add to obtain the desired solution?
You will need how much of
of the 95% solution
and how much of the desired 65% solution.
Click here to see answer by richwmiller(17219)

Question 1101350: A grocer mixed Apple juice that costs $12.50 per gallon with 25 gallons of cranberry juice that costs $31.50 per gallon. How much apple juice was used to make cran-apple juice costing $25 per gallon?
Click here to see answer by stanbon(75887)

Question 1101411: The consumption of a vegetable has decreased. the consumption per capita in 2000 was 26.8 lb in a 2010 the consumption dropped to 11.4 lb find the percent decrease. round to the nearest tenth of a percent
Click here to see answer by josmiceli(19441)

Question 1101436: eight less than three times a number is -23

Click here to see answer by ikleyn(52782)

Question 1101436: eight less than three times a number is -23

Click here to see answer by amalm06(224)

Question 1101446: A ball is thrown vertically upward. After t seconds, its height
h (in feet) is given by the function h(t)=48t-16t^2
After how long will it reach its maximum height?
Click here to see answer by htmentor(1343)

Question 937036: At a certain college, the ratio of men to women is 5 to 4. if there are 2800 men, how many women
are there?
Click here to see answer by amalm06(224)

Question 597360: Vegetable oil which costs $2.10/oz is made by combining soybean oil which costs $2.45/oz with canola oil which costs $1.40/oz. Find the number of oz of soybean oil and canola oil required to make 5.1 oz of vegetable oil.
Click here to see answer by amalm06(224)

Question 1101491: Ladt year, Tammy had $30,000 to invest. She invested some of it in an account that paud 7% simple interest per year, and she invested the rest in an account that paid 8% simple interest per year. After 1 year she recueved a total of $2280 in interest. How much did she invest in each account?
Thank you
Click here to see answer by richwmiller(17219)

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