Mathematics, 04.12.2020 01:20 hastaten
Two hourglasses are turned over at the exact same time. The first hourglass contains 300 grams of sand in the upper bulb and sand flows down into the lower bulb at a rate of 5 grams per minute. The second hourglass contains 200 grams of sand in the upper bulb and sand flows down into the lower bulb at a rate of 2 grams per minute.
The system of equations below model the amount of sand remaining, y, in the upper bulbs of the hourglasses after x minutes.
First, select the point on the graph that represents the solution to the system of equations. Notice that one of the equations in the system has already been graphed.
Then, determine the approximate number of minutes it takes for the amount of sand in the top bulbs of the hourglasses to be equal.
Answers: 1
Mathematics, 21.06.2019 17:00
Imogene invested $8,000 in a bank account that pays 8 percent simple interest at the end of each year. her friend invested the same amount in stocks where the growth of the investment is represented as 2,000 times the square root of 2 less than the time lapsed in years. if y1 and y2 represent the amount earned in dollars and t is the time lapsed in years, which system of equations correctly represents the situation?
Answers: 1
Mathematics, 21.06.2019 18:30
Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?
Answers: 1
Mathematics, 21.06.2019 19:30
Asurvey of 45 teens found that they spent an average of 25.6 hours per week in front of a screen (television, computer, tablet, phone, based on the surveyβs sample mean, which value could be the population mean? 2.3 hours 27.4 hours 75.3 hours 41.5 hours
Answers: 1
Mathematics, 21.06.2019 21:00
Calculate the missing value. round the answer to on decimal place. start with 70, increase it by 21%, and end up with
Answers: 2
Two hourglasses are turned over at the exact same time. The first hourglass contains 300 grams of sa...
Computers and Technology, 07.04.2020 18:36
History, 07.04.2020 18:36
History, 07.04.2020 18:36
Mathematics, 07.04.2020 18:36
English, 07.04.2020 18:36