Answer:60
Step-by-step explanation:
2x-5y=3.
-2x+4y=-14
-y=-11
y=11.
x - 22= 7
x= 29
2•(29)-5(11)=3
58-55=3
29-2(11)=7
29-22=7
Answer:
Arav is 30 and Pawan is 40
Step-by-step explanation:
We can call Arav's age x and Pawan's age x + 10, therefore we can write the following equation:
1/7((x + 10) - 5) = 1/5(x - 5)
1/7(x + 5) = 1/5(x - 5)
5(x + 5) = 7(x - 5)
5x + 25 = 7x - 35
-2x = -60
x = 30 so x + 10 = 40
The answer would be 78 seats in the 28th row.
