Pls me error analysis the us postal service delivered 7.14 x 10 to the power of 10 pieces of mail in the month of december and 3.21 x 10 to the power of 10 in the month of january. what is the total mail delivered for these two months? identify and explain the error show correct work and solution what strategy did you use for solving this problem?

we have

Pieces of mail delivered in December by the US postal service

Pieces of mail delivered in January by the US postal service

To find the total mail delivered for these two months, sum the two quantities

so

therefore

the correct solution is

the error is in this part

To move decimal over one place 10 to the power of 10 should be 10 to the power of 11

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.