Answer:
Bag: 800/100 = 8*15 = 120
Umbrella: 400/100 = 4*15 = 60
120 - 60 = 60
The shopkeeper has gained 60 from the transaction
Since the starting point of the arrow is black, that means the sign of inequality should be
Since the arrow is pointed to the right (+ve part of the number line), then
The sign of inequality is
Since the starting point of the arrow is in the middle between -1 and 0, then
It is at -0.5, then
The inequality should be
Answer: The equation is 2j + 3 = 36
Step-by-step explanation: The first clue is Mindy’s age which is given as 36. Also Jake’s age is given as j. However the clue to finding Jake’s age is that,
Mindy’s age is three years older than (that is + 3) two times Jake’s age (that is 2 x j, or simply 2j).
If Mindy’s age is 36, then the equation needed to solve for Jake’s age is
36 = 2j + 3 OR better still
2j + 3 = 36
Answer:
It is proved that if is even the n is even.
Step-by-step explanation:
Given n is any integer.
To show is even then n is even.
Proving by contrapositive suppose is odd. Then we need to show n is odd.
Then, letting k is a ny integer,
Now since (2k+1) is odd therefore n is odd.
Conversly let n is odd, then,
since 2k+1 is odd so is odd.
This proves, if n is even then is even.