2 years ago

Please help everything you need is on the picture.

Mathematics

2 answers:

Ber [7]2 years ago

4 0

Answer:

Step-by-step explanation:

she needs to buy 75% of the dress Bc 100%-25% is 75%

satela [25.4K]2 years ago

3 0

She would need to buy 75% of the dress Bc 100%-25% is 75%

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xenn [34]

Answer:

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Explanation:

Since this is unfactorable, use the Quadratic Formula:

$x = -b ± \frac{ \sqrt{ {b}^{2} - 4ac}}{2a}$

Now, take the information and input it:

$-1 ± \frac{ \sqrt{1 - 4(7)(5)}}{2(7)} \\ \\ -1 ± \frac{ \sqrt{ -139}}{ 14} = \frac{-1 ± i\sqrt{139}}{14}$

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3 years ago

25x - 80 = 120 cant figure this i need help please

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Answer:

x = 8

Step-by-step explanation:

25x - 80 = 120

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Check your answer:

25x - 80 = 120

25(8) - 80 = 120

200 - 80 = 120

120 = 120

This statement is correct

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