The LCM is 35000.
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LCM(5000, 11000) = 55000
15000 / 2 is equal to 7,500.
To calculate the average of two numbers, add them together, and divide the result by 2. (For the average of three numbers, you add up the three numbers, and divide by three, etc.) The average is (5000 + 7000)/2 = 6000
1000, 2000, 3000, 4000, 5000, 6000, 7000, 8000, 9000, 10000, 11000, . . .
.06x+.08y=520 x+y=7000 solve for either the x or y in the x+y=7000 problem: y=7000-x now subsitute your new equation in for y: .06x+.08(7000-x)=520 now solve: .06x+560-.08x=520 -560 -560 .06x-.08x=-40 -.02x=-40 -.02 -.02 x=2000 then plug x into your x+y=7000 equation: 2000+y=7000 y=5000 SOOO, x=2000 @ 6%, y=5000 @8%