2m + n
2(10) + 8
the answer is 28
Answer:
17
Step-by-step explanation:
If in a 7 sided polygon 4 diagonals can be drawn then as you increase the number of sides you increase the number of diagonals
8 sides
5 diagonals and so on
Answer:
ZP=66
Step-by-step explanation:
Quadrilateral WXYZ is a rectangle. Diagonals WY and ZX intersect at P. If PY=3x−5 and WP=2x+11, find the value of ZP.
9514 1404 393
Answer:
Step-by-step explanation:
Let 'a' and 'e' represent Alvin's and Elga's ages, respectively.
a = e-12 . . . . . Alvin is 12 years younger
a + e = 86 . . . the sum of their ages is 86
__
Substituting for 'a' gives ...
(e -12) +e = 86
2e = 98
e = 49
a = 49 -12 = 37
Alvin is 37; Elga is 49.
