James bought 22 candy bars for $137. If the king size candy bars cost $8 and a regular size candy bar cost $5 , how many of each candy bar did he buy? One equation looks like: x + y= 22 Find the other equation and solve the system.

Given:

James bought 22 candy bars for $137.

If the king size candy bars cost $8 and a regular size candy bar cost $5.

To find:

The system of equation and solution of it.

Solution:

Let x be the number of king size candy and y be the number of regular size candy.

Quantity:           ...(i)

Cost :        ...(ii)

Multiply the equation (i) by 5.

          ...(iii)

Subtract (iii) from (ii).

Put x=9 in (i).

Therefore, number of king size candy is 9 and number of regular size candy  is 13.

so, converting firstly the mixed fractions to improper fractions and then "adding".

step-by-step explanation:

mean or average is 40.6