Answer:
see explanation
Step-by-step explanation:
since the dilatation is centred at the origin , then multiply each of the coordinates of A, B, C by the scale factor 2, that is
A' = (2(- 2), 2(- 2) ) = A'(- 4, - 4 )
B' = (2(1), 2(- 1) ) = B'(2, - 2 )
C' = (2(2), 2(0) ) = C'(4, 0 )
The percent markdown is 25%.
It got marked down by $7.
7 divided by 35 = 0.25
0.25 x 100 = 25%
One quarter weighs about 5.67 grams.
5.67 x 32 = 181.44 grams
Grams to kg = .001
181.44 x .001 = .18144 kg
Answer: .18144 kg
155 minutes
1. Find the total available "computer time": 4 hours * 12 computers= 48 hours
2. Split this among all of the students: 48 hours/25 students= 1.92 hours
3. Convert to minutes: 1.92 hr/student * 60 minutes ≈ 155 minutes/student
I'm not sure I get the question.
x + y = ???
I don't know what your questions means.
Maybe more context?