Evaluating algebraic expressions by substitution practice exercise 2

A matatu charges KES f per km and an extra KES c as a constant charge. If f = 15 and c = 30, evaluate the cost for 10 km using: 10f + c

A matatu charges KES f per km and an extra KES c as a constant charge. If f = 15 and c = 30, evaluate the cost for 10 km using: 10f + c.  (1mark)

A matatu charges KES f per km and an extra KES c as a constant charge. If f = 15 and c = 30, evaluate the cost for 10 km using: 10f + c.  (1mark)

A matatu charges KES f per km and an extra KES c as a constant charge. If f = 15 and c = 30, evaluate the cost for 10 km using: 10f + c.  (1 mark)

If x = 5 and y = 4, evaluate:(x² + y² + x) / (y + x)

If x = 5 and y = 4, evaluate: \( \frac{x^2+ y^2 +x}{y+x} \).  (1mark)

If x = 5 and y = 4, evaluate: \( \frac{x^2+ y^2 +x}{y+x} \).  (1mark)

A school allocates KES r per student for lunch and KES s per student for drinks. If r = 50 and s = 20, evaluate the budget for 5 students using: 5r + 5s

A school allocates KES r per student for lunch and KES s per student for drinks. If r = 50 and s = 20, evaluate the budget for 5 students using: 5r + 5s.  (1mark)

A school allocates KES r per student for lunch and KES s per student for drinks. If r = 50 and s = 20, evaluate the budget for 5 students using: 5r + 5s.  (1mark)

A school allocates KES r per student for lunch and KES s per student for drinks. If r = 50 and s = 20, evaluate the budget for 5 students using: 5r + 5s.  (1 mark)

A boda boda covers a distance given by 3x + 2y metres, where x = 150 and y = 100. Find the total distance.

A boda boda covers a distance given by 3x + 2y metres, where x = 150 and y = 100. Find the total distance.  (1mark)

A boda boda covers a distance given by 3x + 2y metres, where x = 150 and y = 100. Find the total distance.  (1mark)

A boda boda covers a distance given by 3x + 2y metres, where x = 150 and y = 100. Find the total distance.  (1 mark)

A vendor sells bananas at KES a per dozen and oranges at KES b per half-dozen. If a = 120 and b = 80, find the total cost of 1 dozen bananas and 2 half-dozens of oranges. Use the expression: a + 2b

A vendor sells bananas at KES a per dozen and oranges at KES b per half-dozen. If a = 120 and b = 80, find the total cost of 1 dozen bananas and 2 half-dozens of oranges. Use the expression: a + 2b. (1mark)

A vendor sells bananas at KES a per dozen and oranges at KES b per half-dozen. If a = 120 and b = 80, find the total cost of 1 dozen bananas and 2 half-dozens of oranges. Use the expression: a + 2b. (1mark)

A vendor sells bananas at KES a per dozen and oranges at KES b per half-dozen. If a = 120 and b = 80, find the total cost of 1 dozen bananas and 2 half-dozens of oranges. Use the expression: a + 2b. (1 mark)

If x = 6 and y = 4, evaluate:(x² - 2xy + y²) / (x - y)

If x = 6 and y = 4, evaluate: \( \frac{x^2 - 2xy + y^2}{x-y} \).  (1mark)

If x = 6 and y = 4, evaluate: \( \frac{x^2 - 2xy + y^2}{x-y} \).  (1mark)

If x = 6 and y = 4, evaluate: \( \frac{x^2 - 2xy + y^2}{x-y} \).  (1mark)

If x = 6 and y = 4, evaluate: \( \frac{x^2 - 2xy + y^2}{x-y} \).  (1mark)

If x = 6 and y = 4, evaluate: \( \frac{x^2 - 2xy + y^2}{x-y} \).  (1mark)

If x = 6 and y = 4, evaluate: \( \frac{x^2 - 2xy + y^2}{x-y} \).  (1 mark)

If x = 3 and y = 2, evaluate:(3x² - y²) / (x + y)

If x = 3 and y = 2, evaluate: \( \frac{3x^2 - y^2}{x+y} \).  (1mark)

If x = 3 and y = 2, evaluate: \( \frac{3x^2 - y^2}{x+y} \).  (1mark)

A carpenter in Nakuru has a board made of three wooden pieces joined together. Their lengths in cm are: 3x + 2 x + 5 2x − 1 If x = 4, what is the total length of the board?

A carpenter in Nakuru has a board made of three wooden pieces joined together. Their lengths in cm are: 3x + 2, x + 5,2x − 1. If x = 4, what is the total length of the board?  (1mark)

A carpenter in Nakuru has a board made of three wooden pieces joined together. Their lengths in cm are: 3x + 2, x + 5,2x − 1. If x = 4, what is the total length of the board?  (1mark)

A carpenter in Nakuru has a board made of three wooden pieces joined together. Their lengths in cm are: 3x + 2, x + 5,2x − 1. If x = 4, what is the total length of the board?  (1mark)

A carpenter in Nakuru has a board made of three wooden pieces joined together. Their lengths in cm are: 3x + 2, x + 5,2x − 1. If x = 4, what is the total length of the board?  (1 mark)

Evaluate \(\frac{2a + b}{c}\) given \(a = 9\), \(b = 4\), \(c = 5\).

Evaluate \(\frac{2a + b}{c}\) given \(a = 9\), \(b = 4\), \(c = 5\). (1 mark)

Evaluate \(\frac{2a + b}{c}\) given \(a = 9\), \(b = 4\), \(c = 5\). (1 mark)

The diagram below represents a triangular path surrounding a flower garden in Meru. If x = 4 and y = 5, calculate the total perimeter of the path in metres.

The diagram below represents a triangular path surrounding a flower garden in Meru. If x = 4 and y = 5, calculate the total perimeter of the path in metres.  (1mark)

The diagram below represents a triangular path surrounding a flower garden in Meru. If x = 4 and y = 5, calculate the total perimeter of the path in metres.  (1mark)

The diagram below represents a triangular path surrounding a flower garden in Meru. If x = 4 and y = 5, calculate the total perimeter of the path in metres.  (1 mark)