There asking what the numbers are by The ratios, what I did was did was multiply by 8 for each number 8•8=64 13•8=104 11•8=88 so now what you do is add up 64+104+88=256 those are your answers if you want to double check you will dived them by 8 so 64/8=8 104/8=13 88/8=11
Hope this helps :-)
Answer:

Step-by-step explanation:
we would like to factor the following:

let a²+b²=x
thus substitute:

rewrite the middle term as 4x-22x:

factor out x:

factor out -22:

group:

substitute back:

and we are done!
18 mins.
Explanation:
Time taken to travel 20 m = 1 min
Time taken to travel 360m = x min
therefore:
1/20=x/360
(cross multiply)
20 x =360(isolate x by dividing both sides by 20)
x = 360
20 x
= 18 mins.
Answer:
Please see attachment
Step-by-step explanation:
Please see attachment