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elena-s [515]
3 years ago
13

The diagram shows a triangle 60° 11y 4y What is the value of y? y =​

Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
4 0

Answer:

y = 8

Step-by-step explanation:

11y + 4y + 60 = 180

11y + 4y = 120

15y = 120

y = 8

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For example: To find the standard deviation, you have to add up all the numbers in the data set, then divide by how many numbers there are, and that will get you your answer.

Example,  Say your data set is: 9, 2, 5, 4, 12, 7, 8, 11, 9, 3, 7, 4, 12, 5, 4, 10, 9, 6, 9, 4.

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yaroslaw [1]

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-10x+7.5

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Find the sum. 3 6 9 ... 294
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A realtor is decorating some homes for sale, putting a certain number of decorative pillows on each twin bed and a certain numbe
VikaD [51]

The number of decorative pillows did the realtor arrange on each twin bed and queen bed is 6 and 9 respectively.

<h3>Simultaneous equation</h3>

let

  • Number of decorative pillows for twin bed = x
  • Number of decorative pillows for queen bed = y

x + y = 15

2x + y = 21

From equation (1)

x = 15 - y

  • Substitute x = 15 - y into (2)

2x + y = 21

2(15 - y) + y = 21

30 - 2y + y = 21

- 2y + y = 21 - 30

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y = 9

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Learn more about simultaneous equation:

brainly.com/question/16863577

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