Answer:
50+50
75+25
60+40
90+10
45+55
Step-by-step explanation:
Answer:
(4,18)
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
You call the number x. Then you do (x-7) * 3=-9.
3x-21=-9
3x=12
x=4
Answer:
too long
Step-by-step explanation:
Answer:
x = 8
Step-by-step explanation:
The triangle is isosceles with legs congruent, both x
Using Pythagoras identity in the right triangle
x² + x² = 16²
2x² = 256 ( divide both sides by 2 )
x² = 128 ( take the square root of both sides )
x =
=
=
×
= 8