Problem. An elderly woman launches her boat from point X on a bank of a strait river 3kilometers wide. She wants to reach point Y, 8 km downstream on the opposite bank as quickly as possible. She could row her boat directly across the river to point Z and then turn to A, or he could row to some point A between CZ and Y, then run to Y. Show proper illustration.
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.
correction. rowing speed was 6km/hr and running is 5km/hr
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