Answer:
3/8
Step-by-step explanation:
7/8-1/2=
7/8+ -1/2 (1 is negative)
= 7/8+-4/8(4 is negative)
=7+-4
_______=3/8
8
Answer:
1) x=67, y=83, z=80 2) x=5
Step-by-step explanation:
1) 28+85=113 a triangle is 180 degrees so 180-113=67 so x=67
x and y are supplementary meaning both sides equal 150 so 150-67=83
83+17=100 now going back how much did i say a triangle should equal? 180 so z is 80
2)a triangle = 180 since the triangle is a right angle it includes the angle 90 so make the equation to solve for x
180=90+8x+2+9x+3
take 90 to other side so you are subtracting 180-90
90=8x+2+9x+3
combine like terms
90=17x+5
subtrcat 5 from 90
85=17x
now divide 85 by 17 and you get x=5
All you do is change signs write 2x minus 14 equals negative 10-14 equals four then you write 2x over two equals four over two then u write x equals negative two
That is like ((12)^ 2xyz)^7
Answer:
16
Step-by-step explanation:
a coin is 2 sided thus has 2 out comes so doing it 8 times = 16 outcomes