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3 years ago

sale price $25 original price $40 what percent.represents the discount that received when buying the sweater

Mathematics

1 answer:

Nezavi [6.7K]3 years ago

5 0

$\$40-\$25=15\$\\\\\frac{\$15}{\$40}=\frac{3}{8}=\frac{3}{8}\cdot100\%=37.5\%\leftarrow Answer$

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3x3-27x=0<br> Solve by factoring a

Eddi Din [679]

After factoring $3x^3-27x=0$ the solutions are x=0 , x=3, x= -3

Step-by-step explanation:

We need to solve by factoring:

$3x^3-27x=0$

Solving:

$3x^3-27x=0$

Taking 3x common:

$3x(x^2-9)=0$

Now using formula $a^2-b^2=(a-b)(a+b)$

$3x((x)^2-(3)^2)=0\\3x(x-3)(x+3)=0$

$3x=0\,\,and\,\,x+3=0\,\,and\,\,x-3=0\\x=0\,\,and\,\,x=-3\,\,and\,\,x=3\\$

So, After factoring $3x^3-27x=0$ the solutions are x=0 , x=3, x= -3

Keywords: Factorization

Learn more about Factorization at:

#learnwithBrainly

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3 years ago

The floor of a rectangular deck has an area of 600 sq. ft. The floor is 20 ft. wide. How long is the floor? A. 15 ft. B. 20 ft.

11111nata11111 [884]

It's D.30 because 600 divided by 20 is 30 or u can multiply 30 x 20 = 600.

8 0

3 years ago

Please quickly help!! I will Mark brainliest, What is the inverse of the function f(x) = x +3? Thank you!

Irina18 [472]

Answer:

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$fx^{-1} (x)=x+3$

Step-by-step explanation:

To find the inverse of a function, just “trade” x and y and solve for the “new” y. The graph of the inverse is the reflection of the original function over the line y=x.

Rewrite the function

$f(x)=x+3$

as the equation, y=x+3

Trade x and y.

X=y+3

The symbol for the inverse if $fx^{-1} (x)$

$fx^{-1} (x)=x+3$

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3 years ago

Read 2 more answers

Solve for x<br> 3x - 8= 7x +4

Gre4nikov [31]

Answer:

x=-3

Step-by-step explanation:

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3 years ago

A 3-pint bottle of water costs $4.80. What is the price per fluid ounce?

algol [13]

A pint is 16 ounces. So 3 pints are 48 ounxes. $4.80 divided by 48 is 0.1. So each ounce is 10 cents

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3 years ago