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Damm [24]
3 years ago
7

Solve for y. Please help!!

Mathematics
1 answer:
Nadya [2.5K]3 years ago
7 0

Answer:

y=3\sqrt{7}\ units

Step-by-step explanation:

see the attached figure with letters to better understand the problem

we know that

In the right triangle ABD

tan(

In the right triangle BCD

tan(

remember that

m< BAD=m<CBD

therefore

tan(

equate the equations

y/9=7/y

y^{2}=63

y=3\sqrt{7}\ units

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Answer:

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Step-by-step explanation:

It is given that two lines form a linear pair with equal measures. Therefore, the angle between the two lines will be 90. Now, according to the question,

2x + 20y - 10 =90

2x+20y = 100

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And

2x = 20y-10

x = 10y -5

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Now, adding x + 10y = 50 and x - 10y =-5, the value of x can be found. The required value will be:

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x = 45

Therefore, the value of y after substitution of the value of x in one of the equations will be:

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