Mathematics, 18.03.2021 02:00 josephmelichar777
The half-life of a radioactive kind of tin is 10 days. If you start with 1,600 grams of it, how much will be left after 50 days?
Answers: 1
Mathematics, 21.06.2019 18:30
Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?
Answers: 1
Mathematics, 22.06.2019 01:00
Arrange the steps to solve this system of linear equations in the correct sequence. x + y = -2 2x โ 3y = -9 tiles subtract 3x + 3y = -6 (obtained in step 1) from 2x โ 3y = -9 (given) to solve for x. substitute the value of x in the first equation (x + y = -2) to get y = 1. the solution for the system of equations is (-3, 1). x = -15 the solution for the system of equations is (-15, 13). add 3x + 3y = -6 (obtained in step 1) to 2x โ 3y = -9 (given), and solve for x. x = -3 substitute the value of x in the first equation (x + y = -2) to get y = 13. multiply the first equation by 3: 3(x + y) = 3(-2) 3x + 3y = -6.
Answers: 1
The half-life of a radioactive kind of tin is 10 days. If you start with 1,600 grams of it, how
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