# 5.6.2. Constants and Variables

If and are two numbers, where the greater one is 16 more than the other, and is the smaller one, find the algebraic expression that represents .

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If Mona has LE, and what Dalia has is less than what Mona has by LE, how much does Dalia have?

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Given that the product of the two numbers and is 14, determine the value of .

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If the side length of a rhombus is and its perimeter is , find the equation that represents the relation between and .

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If the area of a rectangle is , and its length and width are cm and cm respectively, determine the equation that gives the value of .

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If the side length of an equilateral triangle is , and its perimeter is , find the mathematical relation between and .

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A boy bought kg of chocolate and a box, which costs LE, to keep the chocolate. Calculate what the boy should pay in terms of if the price of one kilogram of chocolate is LE.

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The owner of a factory pays the daily wage of a worker according to the relation , where represents the number of overtime working hours, and represents the daily wage in LE. Complete the table below.

 Number of Overtime Hours Total Daily Wage 6 11 74 98

• A50, 10, 66, 14
• B36, 10, 66, 14
• C22, 10, 52, 14
• D50, 10, 80, 14
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The figure below shows a rectangle whose length is cm and width is cm. If its perimeter is , find a mathematical relation between and then determine when cm.

• A, cm
• B, cm
• C, cm
• D, cm
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The figure below shows a rectangle whose length is cm and width is cm. If its perimeter is , find a mathematical relation between and then determine when cm.

• A, cm
• B, cm
• C, cm
• D, cm
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If a man bought 4 pens and 11 pencils, where the price of a pen is denoted by LE, and that of a pencil is denoted by LE, determine the amount that he paid in terms of and .

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Find the mathematical relation between the lengths of the sides and the perimeter of the isosceles triangle below that has a base of cm, where represents the perimeter of the triangle and represents the length of .

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Express the variable relation in which the difference between the number and seven is sixty-eight.

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Find the variable relation represented by the following table: .

 Input () Output () 117 450 144 13 50 16

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Complete the variable relation represented by the following table: .

 Input () Output () 16 63 87 13 60 84

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