3 years ago

Need to find the value of N. need ASAP due to it being a hand in

Mathematics

1 answer:

olga_2 [115]3 years ago

7 0

Answer:

n=11

Step-by-step explanation:

This is a right angle, so the angles are complementary and have a sum of 90°.

$4n-8+5n-1=90$

$9n-9=90$

$9n=99$

$n=11$

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