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SOVA2 [1]
4 years ago
11

Find the value of x and y.

Mathematics
2 answers:
Hunter-Best [27]4 years ago
7 0
2x + 7 = 3x - 7
3x - 2x = 7 + 7
x = 14

2x + 7 + 12y + 1 = 180
2(14) + 12y + 8 = 180
28 + 12y + 8 = 180
36 + 12y = 180
12y = 180 - 36 = 144
y = 144/12 = 12

x = 14, y = 12
tiny-mole [99]4 years ago
7 0

the answer is x=15, y=12

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Read 2 more answers
1. A fast food outlet claims that the mean waiting time in line is less than 3.8 minutes. A random sample of 60 customers has a
kolezko [41]

Answer:

There is no significant evidence to conclude that the mean waiting time is less than 3.8 minutes

Step-by-step explanation:

H0 : μ = 3.8

H1 : μ < 3.8

Test statistic :

(x - μ) ÷ s/sqrt(n)

(3.7 - 3.8) ÷ 0.6/sqrt(60)

Test statistic = - 1.29

The Pvalue from test statistic :

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Reject Null if

Pvalue < α

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There is no significant evidence to conclude that the mean waiting time is less than 3.8 minutes

7 0
3 years ago
Hi I’m new can someone help me on this (PLZ NO LINKS)
Ymorist [56]
Complementary angles add up to 90 degrees.
So to find A you would need to add A and B together and equal it to 90 (3x+25+5x-7=90)
Combine like terms together (8x+18=90)
Subtract 18 from night sides (8x=72)
Divide by 8 on both sides (x=9)
Then to find A substitute x into its equation (3(9)+25)=(27+25)=52

A=52 I think
7 0
3 years ago
What is the circumference of the circle shown below? (Round your answer to the nearest tenth.) A. 33.0 B. 66.0 C. 346.4 D. 206.2
Afina-wow [57]

Answer:

B. 66.0

Step-by-step explanation:

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8 0
2 years ago
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