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3 years ago

14

Carol is given a 10% pay decrease. Her new wage is £306 per week. What would be her weekly wage if, instead, she had received a

10% pay increase?

1 answer:

Nitella [24]3 years ago

7 0

370.26 , get what she had originally (336.6) by multiplying 306 by 1.1 then multiply 336.6 by 1.1 to see her increase

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4 years ago

Which system is equivalent to 3x squared - 4y squared = 25 over -6x squared -2y squared = 11

TEA [102]

So we are given the following system:
$3x^2-4y^2=25\\
-6x^2-2y^2=11\\\text{Multiply the second equation by -2:}\\12x^2+4y^2=-22\\\text{Add to the first equation we get:}\\15x^2=3
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Using the first equation again we get:
$3x^2-4y^2=25\\
3x^2=4y^2+25\\
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