3 years ago

What is the value of y?

Mathematics

1 answer:

ANTONII [103]3 years ago

7 0

Answer:

y = 22°

Step-by-step explanation:

the sum of the interior angles of a triangle is 180 degrees

40 + 2x = 180

2x = 140

x = 70

'x' and '5y' form a linear pair, meaning they add up to 180 degrees

x + 5y = 180

substitute 70 for 'x'

70 + 5y = 180

5y = 110

y = 22

You might be interested in

What is 127 as a percent?

kondor19780726 [428]

Hello!

The answer is 127,000%

3 0

3 years ago

HELP almost due in 5

skad [1K]

Answer:

A, D,F are triangle sides

4 0

3 years ago

Use substitution to solve the system. x=3y+5 5x-4y=14 ______________ x= y=

nataly862011 [7]

So what you do is go 5(3y+5)-4y=14 which equals 15y+25-4y=14 which turns into 11y+25=14 than you move the 25 over which equals 11y=-11 so y=-1 then you enter -1 in for y which looks like 5x-4(-1)=14 than you solve that which is 5x+4=14 than you move the 4 over and you get 5x=10 than x=2

x=2
y=-1

8 0

3 years ago

What is the soulution set of the equation 3x^2=48

valentina_108 [34]

Answer:

x = ± 4

Step-by-step explanation:

given 3x² = 48 ( divide both sides by 3 )

x² = 16 ( take the square root of both sides )

x = ± $\sqrt{16}$ = ± 4