To find the best estimate for x, we want to isolate x on one side of the equation.
By subtracting 1,988 from both sides of the equation, we get:
21x = 2,243 - 1,988
21x = 255
To solve for x, we divide both sides of the equation by 21:
x = 255/21
The best estimate for x is the closest option to 255/21.
A) 10 is too small
B) 100 is too small
C) 1 is too small
D) 1,000 is too large
From the options given, none of them are equal to or close enough to 255/21. Thus, a better option is needed.
Which of the following answers gives the best estimate for x given the following equation.
21x + 1,988 = 2,243
A) 10
B) 100
C) 1
D) 1,000
1 answer