In this lesson, we will explore two types of problem in depth, thinking carefully about how to represent each problem in order to help us find a solution.
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Which expression would represent the following problem: The cost of a photo album book is £1.50 for binding and printing with an additional cost of 25p per photograph.
a = 150b + 25
Correct answer: a = 25b + 150
a = 25b + 150
Q3.
a - 2b = 8. Which of the following pairs of numbers would work?
Correct answer: a = 10, b = 1
a = 10, b = 1
a = 10, b = 4
a = 5, b = 2
a = 8, b = 1
Q4.
A function machine has the rule x = 2y + 1. Where y is the input and x is the output. If we put 4 into the function machine (y = 4) what would come out?
