There is infinitely many ratios which are equivalent to 5:9. As we know always we can write divide as fraction, so

. We can multiply nominator and denominator by the any number (but the same) and get another numbers but ratio will be the same, so equivalent.
For example
10:18,
15:27
I’m not sure...but I think
x+y=5
If x =15
Then 15+y=5
Y= 10
The 2nd robot can do the task in 10min
17 + 5shirts = 42
5shirts = 42-17 = 25
1shirt = 25/5 = 5
A shirt costs £5.
3*5 + 1hat = 17
15 + 1hat = 17
1hat = 2
A hat costs £2
Answer:
8-14 or -6
Step-by-step explanation:
-36x+30
-24x+20
-18x+15
-12x+10