Trevor solved the system of equations below. what mistake did he make in his work?
2x +...
Mathematics, 04.02.2020 03:44 brainbean
Trevor solved the system of equations below. what mistake did he make in his work?
2x + y = 5
x β 2y = 10
y = 5 β 2x
x β 2(5 β 2x) = 10
x β 10 + 4x = 10
5x β 10 = 10
5x = 0
x = 0
2(0) + y = 5
y = 5
he should have substituted 5 + 2x
he combined like terms incorrectly, it should have been 4x instead of 5x
he subtracted 10 from the right side instead of adding 10 to the right side
he made no mistake
Answers: 2
Mathematics, 21.06.2019 18:00
How many triangles can be drawn with side lengths 4 centimeters, 4.5 centimeters, and 9 centimeters? explain
Answers: 1
Mathematics, 21.06.2019 18:30
Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.
Answers: 1
History, 07.12.2020 22:30
Mathematics, 07.12.2020 22:30
Social Studies, 07.12.2020 22:30
History, 07.12.2020 22:30
Mathematics, 07.12.2020 22:30
English, 07.12.2020 22:30
English, 07.12.2020 22:30
Mathematics, 07.12.2020 22:30
Mathematics, 07.12.2020 22:30
History, 07.12.2020 22:30
Mathematics, 07.12.2020 22:30
Physics, 07.12.2020 22:30