5-(-8)= 5+8= 13 because when the problem is subtraction you change the last number to a positive or negative
Answer:
88000
Step-by-step explanation:
387 / 129 = 3
that means the population will double three times
11000 x 2 = 22000
22000 x 2 = 44000
44000 x 2 = 88000
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.
Answer:
I believe the variable N would be 100,000 because it is saying that tickets are $50 a person so you have to multiply that by how many people are at the stadium. So you would do 50(100,000) which equals 5,000,000.
Step-by-step explanation:
Explanation is in the answer above.
41 bc it is prime and the ones is 3 less than the 10s