Which is the best estimate of x based on rounding the constants and coefficients in the equation to the nearest integer?

6.15(x – 8.86) = 21.83

A.
12.8

B.
12.7

C.
12.6

D.
11.7

Question

Which is the best estimate of x based on rounding the constants and coefficients in the equation to the nearest integer?

6.15(x – 8.86) = 21.83
 
 
 A.
12.8
 
 B.
12.7
 
 C.
12.6
 
 D.
11.7

anonymous · Answer

@ranga  @Xmoses1  @Hero  @linn99123   any help if your not  busy

ranga · Answer

First let us round the constants and coefficients in the equation to the nearest integer:  6.15(x – 8.86) = 21.83  after rounding becomes:
6(x - 9) = 22
divide both sides by 6
(x-9) = 22/6 = 11/3
add 9 to both sides:
x = 9 + 11/3 = (27 + 11)/3 = 38/3 = 12 & 2/3 = 12.6666 rounded to 12.7

anonymous · Answer

thank you so much!

ranga · Answer

you are welcome.