Mathematics, 18.11.2020 20:00 michelle453
Roman solved the equation 5 a + 2 b = 10 for a. His steps are shown below.
1. Subtract 2b: 5 a + 2 b minus 2 b = 10 minus 2 b. 5 a = 10 minus 2 b.
2. Multiply by 5: a = 50 minus 10 b.
Which statement about Roman’s work is true?
In step 1, he needed to add 2b to both sides of the equation.
In step 1, he needed to divide both sides of the equation by 2b.
In step 2, he needed to divide both sides of the equation by 5.
In step 2, he needed to subtract 5 from both sides of the equation.
Answers: 2
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Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.
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Roman solved the equation 5 a + 2 b = 10 for a. His steps are shown below.
1. Subtract 2b: 5 a + 2...
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