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Mathematics
21.08.2020 21:06
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Ginger earned $250 selling candles. She sold x small candles for $12.50 each and

Ginger earned $250 selling candles. She sold x small candles for $12.50 each and y large candles for $25.00 each. If Ginger sold a total of 14 candles, how many small and large candles did she sell? small candles:
large candles:
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5,0(84 marks)

Option 2 and 3 - 3 and -\frac{1}{2}

Step-by-step explanation:

Given : Equation (4x-5)^2=49

To find : What are the possible values of x ?

Solution :

Equation (4x-5)^2=49

Taking root both side,

\sqrt{(4x-5)^2}=\sqrt{49}

(4x-5)=\pm 7

Taking 4x-5=7

4x=7+5

4x=12

x=\frac{12}{4}

x=3

Taking 4x-5=-7

4x=-7+5

4x=-2

x=-\frac{2}{4}

x=-\frac{1}{2}

The possible values of x are 3 and -\frac{1}{2}

Therefore, option 2 and 3 are correct.

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