Question

Write a formula for the cost in pence C, of n apples at y pence each.
Use your formula to work out the cost of 6 apples at 9p each.

Answer 1

Formula for the cost in pence C, of n apples at y pence each

• C = ny

Cost of 6 apples at 9p each

• C = 6*9 = 54 p

Answer 2

Answer:

54 pence

Step-by-step explanation:

Definition of the given variables:

• c = total cost (in pence).
• n = number of apples.
• y = cost per apple (in pence).

Therefore, the formula using the defined variables is:

$\large\boxed{c=ny}$

Given values:

• n = 6
• y = 9p

Substitute the given values into the derived formula and solve for c:

$\implies c=6 \times 9$

$\implies c=54$

Therefore, the total cost of 6 apples at 9 pence each is 54 pence.