Two investments earn an annual income of $946. One investment earns an annual simple interest rate of 7.9%, and the other investment earns an annual simple interest rate of 10.5%. The total amount invested is $10,000. How much is invested in each account? 7.9% investment $ 10.5% investment $ Evaluate the variable expression when a = 3, b = 4, c = −1, and d = -4. b2 – (d – c)2
Percentage
A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.
Algebraic Expressions
In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.
Numbers
Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.
Subtraction
Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.
Addition
Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
Two investments earn an annual income of $946. One investment earns an annual simple interest rate of 7.9%, and the other investment earns an annual simple interest rate of 10.5%. The total amount invested is $10,000. How much is invested in each account?
7.9% investment | $ |
10.5% investment | $ |
Evaluate the variable expression when a = 3, b = 4, c = −1, and d = -4.
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