Mr. jamison deposited $100 into a new savings account on january 1. on the first day of each month thereafter, he deposited three times the amount he deposited in the previous month. on june 15 of the same year, the total amount mr. jamison has deposited is $

$36,400

Step-by-step explanation:

On January 1st the account holds $100. Mr. Jamison deposits 3x times the amount on Feb 1 which is $300. He does this again for March and deposits $900. Each time he triples the amount previously. See below:

Deposits

Jan100

Feb300

March900

April2700

May8100

June24,300

To find the total amount for June 15 of the same year, we add each deposit. 100+300+900+2700+8100+24,300=36,400.

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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