Answer:
$18500 at 6% and $28500 at 8%
Step-by-step explanation:
Let x represent the amount invested at 6%. Then x+10000 is the amount invested at 8%. The total income from the two investments is the sum of the products of the amount invested and the interest rate:
x·6% +(x+10000)·8% = 3390
0.14x + 800 = 3390 . . . . . . . . collect terms
0.14x = 2590 . . . . . . . . . . . . . .subtract 800
2590/0.14 = x = 18500 . . . . . divide by the coefficient of x
Sue has invested $18500 at 6% and $28500 at 8%.
The perimeter (62 cm) is twice the length plus twice the width.
The length plus twice the width is given as 42 cm. The difference between these sums is the length, 20 cm.
If it is 8/8464, it is 0 remainder 8
If it is 8464/8, it doesn’t have remainders. It is 1,058.
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