Answer:
x=-5
Step-by-step explanation:
add 3 to -8
Thats true a number has to be greater than 1 and less than 10.
Answer:
34.482 is the answer to your question
Answer:
Step-by-step explanation:
First it base times height times (1/2)
The base is 7 boxes
The height is 5 boxes
A=(7)(5)(1/2)
A=(35)(1/2)
A=17.5
Answer:
Mr.Lin's present age is 30 years now. His son is 8 years old now.
Step-by-step explanation:
Let L = Mr.Lin's present age,
S = his son's present age.
First equation is
L + S = 38. (1)
The second equation is
L + 3 = 3*(S+3) (2) ("In three years' time, Mr.Lin will be three times as old as his son.")
From (1), express S = 38-L and substitute it into (2). You will get
L + 3 = 3*((38-L)+3), or
L + 3 = 114 - 3L + 9,
4L = 114 + 9 - 3,
4L = 120,
L = 30.
