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erik [133]
4 years ago
9

a museum opened at 8.00 a.m. In the first hour, 350 people purchaced admission tickets. In the second hour, 20% more people purc

hased admission tickets than the first hour. Each admission cost $17.50.
Mathematics
1 answer:
Galina-37 [17]4 years ago
4 0
1st hour 350 purched tickets @ $17.50 each = $6,125

the second hour 20% more people purchased tickets than the first hour - 350 x 20%=70 more than 1st hour.so 70 x $17.50=$1,225 so total sales is $6,125 + 1,225=$7350
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10x - 5y = -25<br> l0x+8y=14
balandron [24]

Greetings,

<em>I hope you and your family are staying safe and healthy! </em>

Answer: x = -1 and y = 3

Step-by-step explanation:

10x - 5y = -25 \\10x + 8y = 14

Let's start by solving 10x - 5y = -25 for x

10x - 5y=-25

Add 5y to both sides

10x - 5y + 5y = -25+5y \\10x = 5y - 25

Now we need to divide both sides by 10

\frac{10x}{10} = \frac{5y-25}{10}

x = \frac{1}{2} y + \frac{-5}{2}

That's not the answer for x. We are not done yet :)

Now we need to substitute \frac{1}{2} y + \frac{-5}{2} for x

10x + 8y = 14\\10(\frac{1}{2} y + \frac{-5}{2} + 8y = 14

Now we need to simply both sides

13y - 25 = 14

Now we need to add 25 to both sides

13y - 25 + 25 = 14 + 25 \\13y = 39 \\y = \frac{39}{13} \\y=3

We have the valuee for y! Now we need to find the value for x

To find the value of x, we need to substitute 3 for y in:

x = \frac{1}{2} y + \frac{-5}{2} \\x = \frac{1}{2} 3 + \frac{-5}{} \\x = -1

Therefore,

The answer is x = -1 and y = 3

---------------------

Please kindly give me 5 stars and leave a thanks if you find my answer to be helpful. Thanks!

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Step-by-step explanation:

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