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dusya [7]
3 years ago
7

The price of a video game was reduced from $60 to $45. By what percentage was the price of the video game reduced?* O 15% O 25%

O 75% 40% M​
Mathematics
1 answer:
Naya [18.7K]3 years ago
5 0

Answer:

25

Step-by-step explanation:

The new price, $45, can be expressed as a percentage of $60 by taking it as a fraction of $60, converting to a decimal value, and multiplying by 100%. $45/$60=3/4=0.75, 0.75x100%=75%. So since 100%-75%=25%, the value was reduced by 25%.

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Solve: 1. 1/6y− 1/2 =3− 1/2y 2. 4x+1/15 = 2x/10
kogti [31]

<u>Answer:</u>

<em>First Equation → </em><u><em>y = 21/4</em></u>

<em>Second Equation → </em><u><em>x = -1/57</em></u>

<u />

<u>Explanation:</u>

<em>solving equation #1</em>

<em></em>

step 1 - simplify

<em></em>

\displaystyle\frac{1}{6}y - \displaystyle\frac{1}{2} = 3 - \displaystyle\frac{1}{2}y\\\\\displaystyle\frac{1}{6}* \displaystyle\frac{y}{1}  - \displaystyle\frac{1}{2} = 3 - \displaystyle\frac{1}{2}* \displaystyle\frac{y}{1}\\\\\displaystyle\frac{y}{6} - \displaystyle\frac{1}{2} = 3 - \displaystyle\frac{y}{2}

step 3 - multiply each side of the equation by six

\displaystyle\frac{y}{6} - \displaystyle\frac{1}{2} = 3 - \displaystyle\frac{y}{2}\\\\\displaystyle\frac{y}{6} * \displaystyle\frac{6}{1}- \displaystyle\frac{1}{2} * \displaystyle\frac{6}{1}= \displaystyle\frac{3}{1} *\displaystyle\frac{6}{1} - \displaystyle\frac{y}{2}* \displaystyle\frac{6}{1}\\\\y - 3 = 18 - 3y

step 4 - add three to both sides of the equation.

y - 3 = 18 - 3y\\\\y-3+3=18+3-3y\\\\y = -3y+21

step 5 - add three y to both sides of the equation.

y = -3y+21\\\\y+3y = -3y+3y+21\\\\y+3y=21

step 6 - simplify

y+3y=21\\\\4y=21

step 7 - divide both sides of the equation by four

4y=21\\\\\displaystyle\frac{4y}{4} = \displaystyle\frac{21}{4}\\ \\y = \displaystyle\frac{21}{4}

Therefore, the solution to the first given equation is <u><em>y = 21/4 </em></u><em>or y = 5.25.</em>

<u><em /></u>

<em>solving equation #2</em>

<em />

step 1 - simplify.

4x + \displaystyle\frac{1}{15}  = \displaystyle\frac{2x}{10} \\\\4x + \displaystyle\frac{1}{15}  = 2*\displaystyle\frac{x}{10}\\\\4x+\displaystyle\frac{1}{15}  = \displaystyle\frac{x}{5}

step 2 - multiply each side of the equation by five.

4x+\displaystyle\frac{1}{15}  = \displaystyle\frac{x}{5}\\\\\displaystyle\frac{4x}{1}* \displaystyle\frac{5}{1}  +\displaystyle\frac{1}{15} * \displaystyle\frac{5}{1}  = \displaystyle\frac{x}{5}* \displaystyle\frac{5}{1} \\\\20x + \displaystyle\frac{1}{3} = x

step 3 - subtract twenty x from each side of the equation.

20x + \displaystyle\frac{1}{3} = x \\\\20x -20x+ \displaystyle\frac{1}{3} = x -20x\\\\\displaystyle\frac{1}{3} = -19x

step 4 - divide each side of the equation by negative nineteen.

\displaystyle\frac{1}{3} = -19x\\\\\displaystyle\frac{\displaystyle\frac{1}{3} }{-19} = \displaystyle\frac{-19x}{-19} \\\\-\displaystyle\frac{1}{57} = x

step 5 - switch

-\displaystyle\frac{1}{57}  =x\\\\x = -\displaystyle\frac{1}{57}

Therefore, the solution to the second equation is <em><u>x = -1/57.</u></em>

5 0
3 years ago
Twenty-Eight plus what number equals forty one. What is it....
UkoKoshka [18]

Answer:

The number is (13) carrot duh

8 0
2 years ago
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Find the value of the trigonometric function to find an approximate value correct to give decimal places
liq [111]
If you have a graphing calculator set it to radian mode and put these in there.

6 0
3 years ago
Tommy can ride his bicycle 4.5 miles in 15 minutes. How many miles can he ride in 75 minutes
adoni [48]
Here, we need to set up a proportion.

4.5 miles in 15 minutes.

In 75 minutes, how much miles can he ride?

4.5/15 = x/75

Cross multiply

4.5 * 75 = 337.5
15*x = 15x

15x = 337.5

15x/15 = 337.5/15
x= 22.5

Final answer:- Tommy can ride 22.5 miles in 75 minutes. 


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3 years ago
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sukhopar [10]
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6 0
3 years ago
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