Solve for y.
A. 10
B.12
C. 15
D. 18
2 answers:
<h2>
Answer:</h2>
Option A is the correct answer.
The value of y is:
A. 10
<h2>
Step-by-step explanation:</h2>
From the figure we could see that:
3x=90°
so on dividing both side of the equation by 3 we obtain:
x=30°
and we see that ∠DBC=90°
Hence, we get:
2x+3y=90
on putting the value of x in the expression we get:
2×30+3y=90
i.e. 60°+3y=90°
⇒ 3y=90°-60°
⇒ 3y=30°
on dividing both side of the equation by 3 we obtain:
y=10°
Hence, the value of y is:
A. 10
Y=10°
If we're solving for the ninety degree angle, which I seem to doubt, then if 3x=90 then 2x=60 giving a missing total of 30. 30/3 equals 10
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