The cost of notebook is $3.49.
What is a word problem?
A word problem is a verbal description of a problem situation. It consists of few sentences describing a 'real-life' scenario where a problem needs to be solved by way of a mathematical calculation.
For the given situation,
Let the cost of pencil box be x
Let the cost of notebook be y
Total cost = $6.28
⇒ \(x+y = 6.28 ----- (1)\)
The notebook cost $0.70 more than the pencil box,
⇒ @@MATH_TOKEN_1@@
Now substitute equation 2 in equation 1,
⇒ @@MATH_TOKEN_2@@
⇒ @@MATH_TOKEN_3@@
⇒ @@MATH_TOKEN_4@@
⇒ @@MATH_TOKEN_5@@
∴ @@MATH_TOKEN_6@@
⇒ @@MATH_TOKEN_7@@
Hence we can conclude that the cost of notebook is $3.49.
Learn more about word problems here
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