Answer: Caroline = 225
Step-by-step explanation:
Let Sarah be x
Caroline will be 3x
Bridget will be 2(3x) = 6x
x + 3x + 6x = 750
10x = 750
x = 750 / 10 = 75
Caroline gets 3x = 3 * 75 = 225
Since the centre of dilatation is the origin, we only require to multiply each of the coordinate points by the scale factor 3
(- 2, 1 ) → ( - 6, 3 )
(- 2, 3 ) → (- 6, 9 )
(1, 2 ) → (3, 6 )
(1, 3 ) → (3, 9 )
Option A:
Yes, he is correct.
Solution:
To find the distance between two points (2, 4) and (6, 3).
Distance between two points formula:

Here 
Substitute these in the distance formula.
Step 1:

Step 2 :
Using BODMAS rule, first simplify the values into the bracket.

Step 3:
Squaring the numbers.


Therefore, George's work is correct.
Option A is the correct answer.
Answer:105
Step-by-step explanation:
(5/7)/4= 5/28 of the trip
1/(5/28) = 5.6 days total
Since we already traveled for 4 days, we have 1.6 more days to go.