Reasoning and problem solving (Part 2)

Maths

Calculation problems

Which expression would represent the following problem: A singer makes money from selling music. They pay a one-off fee of £55 to Oak-Tunes for marketing and distribution costs and receive £1 for each copy of the album sold.

Instead of writing 7 x a in an algebraic expression, what could I write instead?

3c + 2d = 30. Which pair of numbers does does NOT work with this equation?

Kate's age now is a multiple of three. In two years' time, her age will be a prime number.  Which of the following could be her age?

Sam's age now is a multiple of four. In four years' time, her age will be a square number.  Which of the following could be her age?

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 - 2b = 8. Which of the following pairs of numbers would work?

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?

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