Answer:
81 m²
Step-by-step explanation:
A = 6*10 + 7*6/2
= 60 + 7*3
= 60 + 21
= 81 m²
Answer:
x = 5. y = 4
Step-by-step explanation:
7x - 4 = 31
7x = 35
x = 5
4y + 8 = 24
4y = 16
y = 4
Are you missing something?
2xy=7
5xy=9
does not have a solution.
If you mean
2x+y=7
5x+y=9
please say so.
