Alex completes the 70km journey between london and reading in 54 minutes. She then drives 42km from reading to oxford at an average speed of 70km/h work out averages average speed in km/h for her total journey from London to oxford

astronomers is your final answer! : )

1.3

step-by-step explanation:

3x2=6   9x+6

bring down the 6 on both sides

6+6=12

12= 9x

divide by 9

12/9 =

1.3 =x

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

: )

x coordinate is none

step-by-step explanation: