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Lubov Fominskaja [6]
3 years ago
10

What is the value of x in feet? (Perimeter and area)

Mathematics
1 answer:
babymother [125]3 years ago
4 0

Answer:

x = 71.937 ft or 72 ft

Perimeter = 187 ft

Area of triangle = 1260 ft²

Step-by-step explanation:

Pythagorean Theorem

a^2 + b^2 = c^2

a = 35

b = x

c = 80

35^2 + x^2 = 80^2

x^2 = 5175

x = 71.937 ft or about 72 ft

Perimeter = a  + b + c = 35 + 72 + 80 = 187 ft

Area of triangle =1/2*base*height= 1/2(72)(35) = 1260ft^2

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During a clearance sale, a discount of 33.3% is given on a dinner set marked at $2799. Find it's selling price
Mashcka [7]

First, convert the 33% to a real mathematical number. For percents, this is always done by dividing the 33% by 100%, or 33% / 100% = 0.330.

Second, find out what 33% of $2799 is. This is the amount of the sale discount. This is always found by mulitplying 0.330 by the item's cost $2799, like this:

0.330 x $2799 = $923.67.

So for this sale, you'll save $923.67 on this item.

This means, the cost of the item to you is

$2799 - $923.67 = $1875.33.

Alternatively, you can think about it this way. The item is 33% off. This means you'll pay 67.000% of the total cost (100% - 33% = 67.000%).

Now what's 67.000% of the total cost?

0.670 x $2799 = $1875.33.

Just like the result above, the sale price on the item is $1875.33.

Hope this helps you on your assignment! :)

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3 years ago
Help ASAP plzzzzz I really need help
Bond [772]

Answer:

The answer is B

Step-by-step explanation:

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Answer:

Step-by-step explanation:

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Explain how a rational number and an irrational number are different​
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that is the answer

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3 years ago
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