Question

Solve for the value of d.

Answer 1

9°

Step-by-step explanation:

In the given diagram we see that both the angles are complementary i.e. they form an angle of 90°

So therefore,

According to the question

$(6d + 8) + (3d + 1) = 90$

$= > 9d = 90 - 8 - 1$

$= > 9d = 81$

$= > d = \frac{81}{9}$

$= > d = 9$

Answer - d = 9°

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Answer 2

Answer:

d is 9

Step-by-step explanation:

(6d+8) + (3d+1)=90

9d +9=90

9d=90-9

9d =81

d=81/9

d is 9