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Semenov [28]
3 years ago
10

Savannah wants to buy a new tablet that costs $140. She has a coupon expiring this week that is for 15% off any item. Next week,

the tablet will be on sale for $125. When is it a better deal for Savannah to purchase the tablet, and why?​

Mathematics
1 answer:
tankabanditka [31]3 years ago
6 0

Answer:

Its better to buy this week because it is cheaper with using coupon.

Step-by-step explanation:

140 x 0.85 = 119

125 > 119

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Amiraneli [1.4K]

Answer:

The roots of the equation are x=-3 and x=-2.5

Step-by-step explanation:

<u><em>The correct quadratic equation is</em></u>

2x^2+11x+15=0

we know that

The formula to solve a quadratic equation of the form

ax^{2} +bx+c=0 is equal to

x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}

in this problem we have

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substitute in the formula

x=\frac{-11(+/-)\sqrt{11^{2}-4(2)(15)}} {2(2)}

x=\frac{-11(+/-)\sqrt{121-120}} {4}

x=\frac{-11(+/-)\sqrt{1}} {4}

x=\frac{-11(+/-)1} {4}

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x_2=\frac{-11(-)1}{4}=-3

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The roots of the equation are x=-3 and x=-2.5

5 0
2 years ago
Write a rule to describe a translation 5 units left and 10 units up.
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Answer:

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Therefore, 4.\bar{5}=\frac{4\cdot 9 + 5}{9}=\fbox{$2)\:\frac{41}{9}$}.

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3 years ago
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