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3 years ago

Ms. Francis is buying some groceries. They total to $35.50. Sales tax is 4.5%. When she goes to pay, how much will

Mathematics

2 answers:

belka [17]3 years ago

7 0

Appreciate it if you mark me brainliest!

Answer:

She will owe $37.10

Good luck!

LekaFEV [45]3 years ago

5 0

Answer:

$37.10

Step-by-step explanation:

$35.50 * 4.5% = $1.5975

$35.50 + $ 1.5975 = $37.0975

Round to $37.10

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3 years ago

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$\hbox{Domain:}\\
x^2+x-2\geq0 \wedge x^2-4x+3\geq0 \wedge x^2-1\geq0\\
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$
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x^2-1=x^2+x-2+2\sqrt{(x^2+x-2)(x^2-4x+3)}+x^2-4x+3\\
2\sqrt{(x^2+x-2)(x^2-4x+3)}=-x^2+3x-2\\
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(x+2)(x-1)(x-3)(x-1)=\left(\dfrac{-x^2+x+2x-2}{2}\right)^2\\
(x+2)(x-3)(x-1)^2=\left(\dfrac{-x(x-1)+2(x-1)}{2}\right)^2\\
(x+2)(x-3)(x-1)^2=\left(\dfrac{-(x-2)(x-1)}{2}\right)^2\\
(x+2)(x-3)(x-1)^2=\dfrac{(x-2)^2(x-1)^2}{4}\\
4(x+2)(x-3)(x-1)^2=(x-2)^2(x-1)^2\\$
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There's one more condition I forgot about
$-(x-2)(x-1)\geq0\\
x\in\langle1,2\rangle\\$

Finally
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\boxed{\boxed{x=1}}$

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