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oksano4ka [1.4K]
4 years ago
15

Fill in the missing reason in the proof

Mathematics
1 answer:
GalinKa [24]4 years ago
6 0
We need to see the proof....
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at the movie theatre, child admission is $5.20 and adult admission is $9.00. on Monday, 132 tickets were sold for a total sales
kakasveta [241]

Answer:

That day 51 child tikets were sold

Step-by-step explanation:

To do this problem we have to make 2 equations, one that represents the number of entries and the other that represents the money

x = child tickets

y = adult tickets

x + y = 132

x * $5.20 + y * $9.00 = $994.20

First we have to solve for the x in the first equation

x + y = 132

x = 132 - y

Now we replace the x with (132 - y) in the second equation

x * $5.20 + y * $9.00 = $994.20

(132 - y) * 5.20 + y * 9.00 = 994.20

686.4 - 5.2y + 9y = 994.2

-5.2y + 9y = 994.2 - 686.4

3.8y = 307.8

y = 307.8/3.8

y = 81

We replace y with its value in the first equation

x = 132 - y

x = 132 - 81

x = 51

That day 51 child tikets were sold

6 0
3 years ago
Read 2 more answers
A fancy watch was originally priced at $50 but went on sale for 20% off. If Ernesto bought
Viefleur [7K]

Answer:

$46

Step-by-step explanation:

4 0
3 years ago
Can SOMEONE PLz help meeee...
gizmo_the_mogwai [7]
The slope of the horzontial line is always 0

Just plug in number for x and plot done the point to graph y=3x
8 0
3 years ago
<img src="https://tex.z-dn.net/?f=%5Cfrac%7B%288%2Bn%29%7D%7B12%7D%20%3D1%5C%5C" id="TexFormula1" title="\frac{(8+n)}{12} =1\\"
m_a_m_a [10]

Step-by-step explanation:

  • 8+n/12=1
  • 8+n=12
  • n=4
  • Hence n=4
  • If liked then make me brainlist
3 0
4 years ago
The price of a technology stock has dropped to $9.60 today. Yesterday's price was $9.67. Find the percentage decrease. Round you
beks73 [17]

Answer:

0.7% off

Step-by-step explanation:

\frac{9.6}{9.67} =\frac{y}{100}

9.67 × y = 9.6 × 100

9.67y = 960

9.67y ÷ 9.67 = 960 ÷ 9.67

y=9\frac{267}{967}

y = 99.2

100% - 99.2% = 0.8%

6 0
3 years ago
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