Question 1070141
The amount at 5%: x
The amount at 7%: x-2500
Total interest earned in 1 year: 353
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0.05x+0.07(x-2500) = 353
0.05x+0.07x-175 = 353
0.12x = 528
x = 4400 this is the amount at 5%
The amount at 7% = 4400-2500 = 1900
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Check: 
4400*0.05 = 220
1900*.07 = 133
Total . . = 353 Correct