Answer:
280 is your answer right answer
R(2, 0)
R'(0,-2)
Let's say 2 and -2 are A and 0 is B.
Then R(A, B)
R'(B, -A)
This is rotation by 270 degrees about the origin.
Answer:
1.5 hr and 3.5 hr
Step-by-step explanation:
Time in the first part= x
Time in the second part= 5 - x
- 49x+60(5-x)=283.5
- 49x+300-60x=283.5
- 11x=300-283.5
- 11x= 16.5
- x= 16.5/11
- x= 1.5 hr
- and
- 5-x= 5-1.5= 3.5 hr
Number of Kian´s stamps=57+12x
number of Kai´s stamps=80+8x
x=number of months.
the number of Kian´s stamps must be the same than number of Kai´s stamps, so:
57+12x=80+8x
12x-8x=80-57
4x=23
x=23/4=5.75
The number obtained is decimal, therefore, they never will have the same number of stamps.
After 6 month, they will have almost similar numbers of stamps , but they never will have the same number of stamps.
Answer:they never will have the same number of stamps.