Mathematics, 12.12.2020 16:40 Nathanr23
Caleb solved this equation and recorded his work.
7.4x + 4.1(2x − 4) = −2.3(x − 6) − 21.6
1. 7.4x + 8.2x − 16.4 = −2.3x + 13.8 − 21.6
2. 15.6x − 16.4 = −2.3x + 35.4
3. 17.9x − 16.4 = 35.4
4. 17.9x = 51.8
5. x ≈ 2.89
When Caleb verified his solution, it didn’t work. What mistake did he make?
In step 1, the distributive property was not used properly on the right side of the equation.
In step 2, the like terms were not combined properly on the right side of the equation.
In step 3, the addition property of equality was not used properly to isolate the variable term.
In step 5, the division property of equality was not used properly to solve for x.
Answers: 1
Mathematics, 20.06.2019 18:04
Find the measures of the complement and the supplement of each angle, m
Answers: 1
Mathematics, 21.06.2019 14:00
Me! #1 write an equation for the interior angles of this triangle that uses the triangle sum theorem. #2 what is the value of x? #3 what is the measure of #4 classify the triangle above as acute, obtuse, or right. state your reason in a complete sentence.
Answers: 1
Mathematics, 21.06.2019 17:30
Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling
Answers: 2
Mathematics, 21.06.2019 19:30
Use multiples to write two fractions equivalent to 7/9. 14/18, 8/10 6/8, 21/27 10/12, 28/36 14/18, 21/27
Answers: 1
Caleb solved this equation and recorded his work.
7.4x + 4.1(2x − 4) = −2.3(x − 6) − 21.6
History, 28.01.2021 21:10
Mathematics, 28.01.2021 21:10
French, 28.01.2021 21:10
Mathematics, 28.01.2021 21:10
Mathematics, 28.01.2021 21:10
Mathematics, 28.01.2021 21:10
English, 28.01.2021 21:20