Mathematics, 16.04.2020 04:59 bakoeboo
Mara needs to mix some 30% acid solution and some 70% alcohol solution to end up with 20 liters of 54% solution. How many liters of the 70% solution will she need? Type in your numerical answer only; do not type any words or letters with your answer.
Answers: 1
Mathematics, 21.06.2019 19:30
It is saturday morning and jeremy has discovered he has a leak coming from the water heater in his attic. since plumbers charge extra to come out on the weekends, jeremy is planning to use buckets to catch the dripping water. he places a bucket under the drip and steps outside to walk the dog. in half an hour the bucket is 1/5 of the way full. what is the rate at which the water is leaking per hour?
Answers: 1
Mathematics, 21.06.2019 20:30
Solve this riddle: i am an odd number. i an less than 100. the some of my digit is 12. i am a multiple of 15. what number am i?
Answers: 1
Mathematics, 21.06.2019 23:30
An engineer scale model shows a building that is 3 inches tall. if the scale is 1 inch = 600 feet, how tall is the actual building?
Answers: 3
Mara needs to mix some 30% acid solution and some 70% alcohol solution to end up with 20 liters of 5...
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