Question
which of the following answers gives the best estimate for x given the following equation
21x + 1,998 = 2,243
10
1
1,000
100
21x + 1,998 = 2,243
10
1
1,000
100
Answers
GPT 3.5
To find the best estimate for x, we need to isolate the variable by moving the constant terms to the other side of the equation.
21x + 1,998 = 2,243
Subtract 1,998 from both sides:
21x = 2,243 - 1,998
21x = 245
Now divide both sides by 21:
x = 245 / 21
Simplifying the division gives:
x ≈ 11.67
Therefore, none of the given options (10, 1, 1,000, or 100) is a good estimate for x.
21x + 1,998 = 2,243
Subtract 1,998 from both sides:
21x = 2,243 - 1,998
21x = 245
Now divide both sides by 21:
x = 245 / 21
Simplifying the division gives:
x ≈ 11.67
Therefore, none of the given options (10, 1, 1,000, or 100) is a good estimate for x.