hassandanya hassandanya
  • 19-09-2022
  • Mathematics
contestada


I bought 2 books. One cost twice as much as the other. Together they cost £3.45.
How much did the dearer book cost?

Respuesta :

Xaxarolus
Xaxarolus Xaxarolus
  • 19-09-2022

We can express this as:

x + 2x = £3.45

We can solve for x with no additional work.

x + 2x = £3.45
3x = £3.45
3x/3 = £3.45/3
x = £1.15

Im guessing you're British by the use of the £ symbol, and I don't understand what "dearer" means as in America we don't use that term. I'll just give you both values.

x = £1.15 (this is the first book)
2x = £2.30 (this is the second book, which costs twice as much as the first.)

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