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3 years ago

The store marked up the shirt by 20% the original shirt cost $40 how much does the new shirt cost

Mathematics

2 answers:

oksano4ka [1.4K]3 years ago

7 0

Answer:

Step-by-step explanation:

First find the amount of the markup

40 * 20%

40 *.2

Add this to the original price

40+8 = 48

Fittoniya [83]3 years ago

6 0

Answer:

$32

Step-by-step explanation:

You will pay $32 for a item with original price of $40 when discounted 20%. In this example, if you buy an item at $40 with 20% discount, you will pay 40 - 8 = 32 dollars.

Have an amazing day friend! :D

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Explain, in your own words, the steps necessary to solve a system of equations

Lady_Fox [76]

Step-by-step explanation:

you solve for one of the variable in terms of the 2nd variable in one equation. then you substitute that equation for the variable in the second equation. since it now only has one variable you should be able to solve for the variable.

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3 years ago

Janelle subtracts -4 from a number the result is 2 what is the number

Gre4nikov [31]

Answer:

Step-by-step explanation:

Unknown number = x

So,

x - 4 = 2 (add 4 to both sides)

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4 years ago

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Evaluate the following expression when x = 6 and y = 2:

Liula [17]

Answer:

11/2

Step-by-step explanation:

$\frac{ {x}^{2} + {y}^{3} }{2 + x} \\$

when,

$x = 6 \\ y = 2$

Now substitute the value we get,

$\frac{ {6}^{2} + {2}^{3} }{2 + 6} \\ \\ = \frac{36 + 8}{8} \\ \\ = \frac{44}{8} \\ \\ = \frac{11}{2}$

5 0

3 years ago

(15 points)

Maslowich

Answer:

Each of the legs of isosceles right triangle is 5 $\sqrt{3}$

Step-by-step explanation:

Watch the attached figure for the isosceles right angled triangle

Looking at the figure we see that AB=5√6 and BC=CA

According to the Pythagorean theorem the square of the hypotenuse is equal to the sum of the squares of the other two sides of a right triangle.

1) Applying the Pythagorean theorem to the isosceles right triangle, we have

$BC^{2} + CA^{2} = AB^{2}$

2) Let BC=a and CA=a as they both are equal

So,

$a^{2} + a^{2} = (5\sqrt{6} )^{2}$

=> $2a^{2} = (5\sqrt{6} )(5\sqrt{6} )$

=> $2a^{2} = 5*5*\sqrt{6}*\sqrt{6}$

=> $2a^{2} = 25*6$ (since √6*√6 = (√6)²= 6)

=> $2a^{2} = 150$

3) Dividing both sides by 2, we get

$\frac{2a^{2} }{2} =\frac{150}{2}$

4) Cancelling out the 2's on the left, we get

$a^{2}$ = 75

5) Taking the square root on both sides, we have

$\sqrt{a^{2}} = \sqrt{75}$

=> a = 5 $\sqrt{3}$

So,

Each of the legs of isosceles right triangle is 5 $\sqrt{3}$

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3 years ago

Choose the missing exponent to create a polynomial: 3x^4+4x^2-9x^-?+2

Iteru [2.4K]

Answer:

C) -9

Step-by-step explanation:

Exponents in a polynomial must be positive integers. Since your ? has a minus sign in front, its value must be negative. The only such choice is C.

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3 years ago

The store marked up the shirt by 20% the original shirt cost $40 how much does the new shirt cost​

The store marked up the shirt by 20% the original shirt cost $40 how much does the new shirt cost