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3 years ago

Drew wants to buy exercise equipment that costs $140 and the sales tax is 5.57% what is the total cost of the equipment

Mathematics

2 answers:

Eddi Din [679]3 years ago

8 0

Answer:

$147.80

Step-by-step explanation:

140 x .0557 = 7.80 Tax

Add tax to price

140 + 7.80 = $147.80

vladimir1956 [14]3 years ago

3 0

Answer:$147.80

Step-by-step explanation: Divide 5.57 by 100. 0.0557 then multiply that by 140 and you get 7.798 add that to 140 and you'll get 147.798 and then you round to the cent and it's 147.80

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Step-by-step explanation:

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A certain forest covers an area of 4800km^2. suppose that each year this area decreases by 5% What will the area be after 5 year

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2 years ago

What is the solution set of x2 + 5x + 1 = 0?

DerKrebs [107]

Answer:

$\huge\boxed{\left\{-\dfrac{5+\sqrt{21}}{2};\ \dfrac{-5+\sqrt{21}}{2}\right\}}$

Step-by-step explanation:

$x^2+5x+1=0\\\\\text{Use the quadratic formula:}\\\\\text{For}\ ax^2+bx+c=0\\\\\Delta=b^2-4ac\\\\\text{if}\ \Delta < 0,\ \text{then the equation has no real solution}\\\text{if}\ \Delta=0,\ \text{then the equation has one real solution}\ x=\dfrac{-b}{2a}\\\text{if}\ \Delta>0,\ \text{then the equation has two real solution}\ x=\dfrac{-b\pm\sqrt{\Delta}}{2a}$

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3 0

3 years ago

(05.02) PLEASE ACTUALLY ANSWER AND EXPLAIN WELL!! :)

Nadusha1986 [10]

Answer:

x = 40°

Step-by-step explanation:

Straight angle is equal to 180°

Angle x, 60° and 80° form a straight angle.

<u>Then we have following equation to solve for x:</u>

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3 years ago

Read 2 more answers

A student is asked to find the length of the hypotenuse of a right triangle. The length of one leg is 34

VikaD [51]

Answer:

41.6 centimeters

Step-by-step explanation:

The right triangle formula: c^2 = a^2 + b^2

c is the hypotenuse side of the triangle

a and b are the legs of the triangle.

Find the hypotenuse : c^2 = (24)^2 + (34)^2

c = square root of ( (24)^2 + (34)^2)

c = square root of ( 576 + 1,156)

c = 41.6173

5 0

3 years ago