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olga nikolaevna [1]
3 years ago
15

Steve bought a new TV that cost $399.95. the laptop was on sale for 20% off. If the sales tax is 6.5% how much will he pay for t

he laptop
Mathematics
1 answer:
lakkis [162]3 years ago
6 0
20% off $399.95 is the same as $399.95*.8=$319.96
now add the sales tax   $319.96*.065 = $20.80 (rounded to the nearest penny)

add 319.96 + 20.80 for the answer
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A box with a square base and no top is to be made from a square piece of carboard by cutting 7 in. squares from each corner and
mojhsa [17]

Answer:

The size of the cardboard should be  26  in\ by\ 26in

Step-by-step explanation:

The diagram for this question is shown on the first uploaded image

     The volume of the box is  V = 2527  \ in ^3

The length and the Width of the card is  

      L = W = Z

From the question we are told that 7 in squares were cut from each corner

So the length and the width of the box  would be  

              L = W = (Z - 7)

And the height would be  H  =  7 in

Mathematically the volume of the box can be represented as

              V  = Length\ of\ bx  * Width\ of\ box * Height\ of\ box

So the Volume would be

         V =  (Z-7)(Z-7) * 7

Substituting values

         (Z-7) ^2 = \frac{2527}{7}

          (Z-7) ^2 = 361  

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=>   Z - 7 = 19

        Z = 19 + 7

         Z =26 \ in    

     

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3 years ago
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Viefleur [7K]

Answer:

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Step-by-step explanation:

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a right triangle has legs measuring 4.5 meters and 1.5 meters the lengths of the legs of a second triangle are proportional to t
MrRa [10]

One approach that might be a great help would be if you would look
at the choices ... those things at the bottom of the question that you
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-- One leg is 3 times the length of the other leg.

-- Any right triangle that has one leg three times as long as the other
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I'll bet that if you look through the choices, you'll find one there.

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Answer:

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Step-by-step explanation:

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Dmitrij [34]

Answer: The area of the lake is actually 182 square miles 1 inch represents one side 3 miles long the other side is also 3 miles. 3×3=9 square miles. 1 Square Inch on the map represents 9 Square Miles.

Step-by-step explanation: If the area on the map is 18 square inches, and each square inch represents 9 square miles, multiply 18×9=182 to get the area of that big lake.

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