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Rina8888 [55]
3 years ago
9

Got this wrong on a test and not sure what I did wrong , help!

Mathematics
1 answer:
pashok25 [27]3 years ago
6 0
1500-500=$1000
So now you know that $1000 accounts for only 25% of the ticket sales, so multiply 1000 by 4 to give you 100% of the ticket sales and $4000 is your answer
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Given the system of equations: 2x – y = –2 x = 14 2y
SSSSS [86.1K]
If you would like to solve the system of equations, you can do this using the following steps:

2x - y = -2
x = 14 + 2y
__________
<span>2x - y = -2
</span>2 * (14 + 2y) - y = -2
28 + 4y - y = -2
28 + 3y = -2
3y = -2 - 28
3y = -30    /3
y = -30/3
y = -10

<span>x = 14 + 2y = 14 + 2 * (-10) = 14 - 20 = -6
</span>
(x, y) = (-6, -10)

The correct result would be <span>(-6, -10).</span>
5 0
3 years ago
Ammeters produced by a manufacturer are marketed under the specification that the standard deviation of gauge readings is no lar
AURORKA [14]

Answer:

0.101

Step-by-step explanation:

Given that :

Standard deviation, s = 0.2

Sample variance, s² = 0.0653

Sample size, n = 10

Population variance = σ² = 0.04

We use the Chi square distribution :

(n - 1)s² / σ²

For P(s² ≥ 0.065)

(n - 1)s² / σ² = (10 - 1)*0.0653 / 0.04

(n - 1)s² / σ² = 0.585 / 0.04 = 14.625

P(s² ≥ 14.625) = 0.101 ( chi squee calculator).

8 0
2 years ago
All questions are in the photo :) (please no bot answers if it is answered its most likely a bot)
Verizon [17]

I AM A BOTTTT!!!!!!

7 0
3 years ago
What should replace the ? to make the<br> following statement true?<br> ?<br> 9/11 = ?/88
Feliz [49]

Answer:

72

Step-by-step explanation:

9/11 = ?/88

<em>multiply each side by 8 (because 88 divided by 11 is 8)</em>

72/88 = ?/88

<em>multiply each side by 88</em>

72 = ?

5 0
3 years ago
George earn 3 dollars each time he sweeps and mops in the family room for you trying to earn $17 for tickets to the end of the s
uranmaximum [27]
17+4=21 
21 divided by 3= 7
17 dollars for tickets 
21-4=17
so your answer is 21 he has to sweep the floor 21 times to get tickets

5 0
3 years ago
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