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3 years ago

A jewelry store has a 40% off sale for all necklaces what is cost of a necklace that regularly cost $424

Mathematics

2 answers:

polet [3.4K]3 years ago

5 0

You take $424 and multiply that by .40- for the 40% off. Then subtract that number from $424. Hope this helps you.

Fudgin [204]3 years ago

3 0

Problem would be $424 x .40
and the answer would be 169.6 USD

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Answer:

$10 + (\frac{2}{3}) a = 50$ is the CORRECT equation.

Step-by-step explanation:

The given question is INCOMPLETE.

Javier asks his mother how old a tree in their yard is. His mother says, “The sum of 10 and two-thirds of that tree’s age, in years, is equal to 50.” Javier writes the equation { 10 + 2/3} where a is the tree’s age in years. His equation is not correct. What error did he make?

Now here:

a: The tree’s age in years.

Also, “The sum of 10 and two-thirds of that tree’s age, in years, is equal to 50.”

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$\implies 10 + (\frac{2}{3}) a = 50$

But in the equation written by Javier, the the third fraction is NOT MULTIPLIED by the age of the tree a in Years.

So, the written equation by Javier is Incorrect.

Now, solving the written correct equation for the value of a, we get:

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