If 3/4 = x/8, then x is equal to
2 answers:
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Answer:
x = 4
Step-by-step explanation:
Using Pythagoras' identity in the right triangle.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
x² + 1² = 9²
x² + 1 = 81 ( subtract 1 from both sides )
x² = 80 ( take square root of both sides )
x = =
=
×
= 4
Answer:
x=2
Step-by-step explanation:
5x+ = 7
5x+4 =7 (2)
5x+4=14
5x=14-4
5x=10
=
x=2