HISTORY MIDDLE SCHOOL

Rosie has £15 to spend on pens and pencils. She has to buy the same number of pens as pencils.
What is the greatest number of pens she can buy?
Pens cost £0. 32
Pencils cost £0. 8

Answers

Answer 1
Answer:

Rosie can buy 13 pens and 13 pencils for a total cost of £14.56, which is less than £15.

How to solve this

Let's start by assuming that Rosie buys x pens and x pencils. Since the number of pens and pencils she buys is the same, we can represent the total amount spent on pens and pencils as:

Total cost = (cost per pen) × (number of pens) + (cost per pencil) × (number of pencils)

Total cost = £0.32x + £0.8x

We know that Rosie has £15 to spend, so we can set this equal to the total cost and solve for x:

£15 = £0.32x + £0.8x

Simplifying, we get:

£15 = £1.12x

Dividing both sides by £1.12, we get:

x = 13.39

Since Rosie can only buy a whole number of pens, the greatest number of pens she can buy is 13. To check, let's calculate the total cost:

Total cost = £0.32 × 13 + £0.8 × 13 = £4.16 + £10.40 = £14.56

So Rosie can buy 13 pens and 13 pencils for a total cost of £14.56, which is less than £15.

Read more about math calculations here:

brainly.com/question/22688504

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