Answer:There you go X is the middle, a only brother, b only sister.
a X =11
b X =9
a b X =14 (20-6)
a b 2x=20
X=6
So 6 in the middle, 6 on the outside, 5 only brothers, 3 only sisters. let me know if I missed anything but we have a total of 20, 6 with none, 11 with brothers and 9 with sisters
Step-by-step explanation:
well, we need to find the whole number first. 12 x 3 = 36. Now that we know this we can divide 36 by 2 and get the answer.
36 / 2 = 18.
Half of the number is 18!
Answer: −50x−66
Step-by-step explanation:
4(10x+6)−10(9x+9)
Distribute:
=(4)(10x)+(4)(6)+(−10)(9x)+(−10)(9)
=40x+24+−90x+−90
Combine Like Terms:
=40x+24+−90x+−90
=(40x+−90x)+(24+−90)
=−50x+−66
Answer:
(a) 88 km per hr (b) 16 dollars per hr (c) 20 hrs per job (d) $0.83 per bagel
Step-by-step explanation: