At a new job, you have earned $1,800, $2,100, $1,600, $1,900, and $2,300 the first 5 months. What do you need to earn in the sixth month to have an average of $2,000 for the first 6 months?
A
$2,000
B
$2,100
C
$2,200
D
$2,300

Question

At a new job, you have earned $1,800, $2,100, $1,600, $1,900, and $2,300 the first 5 months. What do you need to earn in the sixth month to have an average of $2,000 for the first 6 months?
A
$2,000
B
$2,100
C
$2,200
D
$2,300

texaschic101 · Answer

(1800 + 2100 + 1600 + 1900 + 2300 + x)/6 = 2000

can you find it now ?

texaschic101 · Answer

(1800 + 2100 + 1600 + 1900 + 2300 + x)/6 = 2000
(9700 + x)/6 = 2000 --- multiply both sides by 6
9700 + x = 12000 --- subtract 9700 from both sides
x = 12000 - 9700
x = 2300 (D)

any questions ?