As 7 is above 5 so we round up 4 to 5. So the answer is 500 bcos the place where the number 4 is, is the hundredth place.
Answer:
Step-by-step explanation:
1) y = 3x -------------(I)
y = 4x - 5 -------------(II)
Plug in y= 3x in equation (II)
3x = 4x - 5
3x + 5 = 4x
5 = 4x - 3x
5 = x
x= 5
Plug in s = 5 in equation (I)
y = 3*5 = 15
x = 5
y = 15
