Answer: 20
Step-by-step explanation:
x+y=5
x-y=4
---------
x=4+y
--------
(4+y)+y=5
4+y+y=5
4+2y=5
2y=1
y=0.5
x=4.5
x²-y²=(4.5)²-(0.5)²=20.25-0.25=20
Answer:
Z = 2
This tape diagram is split into two equal parts.
Since 2 and 2 are equal, and since 2 and 2 have a sum of 4, then z is equal to 2.
n=
0.0049
