Rosalinda invested some of her $15,000 in bonds that made a 6% profit and the rest in bonds that made a 10% profit. If the profit on the 10% bonds was $1,000 more than the profit on the 6% bonds, how much did Rosalinda invest in the 6% bonds
Let's begin by writing algebraic expressions to represent the amount invested at each profit percentage:
x = amount invested at 6% profit
15,000 - x = remainder invested at 10% profit
Now let's write an equation using our algebraic expressions for the two invested amounts and the two profit percentages to express the relationship between the two profit amounts:
Verbal Relationship:
Profit Amount at 10% =
Profit Amount at 6% + $1,000
Percent Conversion to Decimal:
10% = 10/100 = 0.10
6% = 6/100 = 0.06
Algebraic Equation (our answer):
0.10(15,000 - x) = (0.06)(x) + 1,000
Let's begin by writing algebraic expressions to represent the amount invested at each profit percentage:
x = amount invested at 6% profit
15,000 - x = remainder invested at 10% profit
Now let's write an equation using our algebraic expressions for the two invested amounts and the two profit percentages to express the relationship between the two profit amounts:
Verbal Relationship:
Profit Amount at 10% =
Profit Amount at 6% + $1,000
Percent Conversion to Decimal:
10% = 10/100 = 0.10
6% = 6/100 = 0.06
Algebraic Equation (our answer):
0.10(15,000 - x) = (0.06)(x) + 1,000
Rosalinda invested some of her $15,000 in bonds that made a 6% profit and the rest in bonds that made a 10% profit. If the profit on the 10% bonds was $1,000 more than the profit on the 6% bonds, how much did Rosalinda invest in the 6% bonds
Let the amount of bonds @ 6%=B, then the balance,
15,000 - B=Bonds @ 10% interest
.10(15,000 - B) =.06B + 1,000
1,500 - .10B =.06B + 1,000
B=$3,125 Bonds at 6% interest rate.
$15,000 - $3,125 =$11,875 Bonds at 10% interest rate.