x=money at 5% and y=money at 4%

x+y=3000

.05x+.04y=140

Multiply first equation by 5 and 2nd equation by 100

5x+5y=15000

5x+4y=14000

y=1000

x=2000

Evan K.

You multiply the first equation (x + y = 3000) by 5 and the second equation (.05x + .04y = 140) by 100 to state the x variables equally (5). Once the x variables are stated equally, the equations can be subtracted from each other, cancelling out the x terms evenly, and allowing you to solve for y first. - Hope this helps!10/13/19

Chad E.

You worked 49 hours this week and get paid $10.40/hr what will be your gross paycheck ?11/13/19

Chad E.

Royce has collected dimes and nickels for a year. He has 2355 coins that total $171.15 how many dimes does he have?11/13/19

Viv G.

Could you please clarify why you multiplied by 5 and 100?10/02/19