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Naily [24]
3 years ago
13

Mary buys a sweater that was originally $42 but was on sale for 30% off a pair of boots that were originally $75 but are 20% off

and a pair of jeans that were originally $30 but are 15% off how much money does mary save total
Mathematics
1 answer:
natta225 [31]3 years ago
4 0
You will pay $29.40 for the sweater
You will pay $60.00 on boots and
You will pay $25.50 for the jeans

You will save $32.01 in total
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What is the quotient of 1060 ÷ 48
nikdorinn [45]

1060 / 48 = 22.08 = 22.1

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If y=3 when x=4,find y when x=6
borishaifa [10]

Answer:

2

Step-by-step explanation:

(x)(y) = k    Inverse relationship

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Solve 12^x^2+5x-4 = 12^2x+6
faust18 [17]

The solutions for ‘x’ are 2 and -5

<u>Step-by-step explanation:</u>

Given equation:

                    12^{x^{2}+5 x-4}=12^{2 x+6}

Since the base on both sides as ‘12’ are the same, we can write it as

                     x^{2}+5 x-4=2 x+6

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                     x^{2}+3 x-10=0

Often, the value of x is easiest to solve by a x^{2}+b x+c=0 by factoring a square factor, setting each factor to zero, and then isolating each factor. Whereas sometimes the equation is too awkward or doesn't matter at all, or you just don't feel like factoring.

<u>The Quadratic Formula:</u> For a x^{2}+b x+c=0, the values of x which are the solutions of the equation are given by:

                       x=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}

Where, a = 1, b = 3 and c = -10

                       x=\frac{-3 \pm \sqrt{(-3)^{2}-4(1)(-10)}}{2(1)}

                       x=\frac{-3 \pm \sqrt{9+40}}{2}

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So, the solutions for ‘x’ are

                       x=\frac{-3+7}{2}=\frac{4}{2}=2

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The solutions for ‘x’ are 2 and -5

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