He can paint around 9.25 rooms an hour. Please mark Brainliest!!!
Answer:
7
Step-by-step explanation:
Changing LHS as
Comparing LHS and RHS
Let no red ribbons=x
no. Of blue ribbons=x+3
No. Of yellow ribb9ns=x+7
Totsl ribbons=28
28=x+x+3+x+7
28=3x+10
3x=28-10
3x=18
X=18/3
X=6
No .of red ribbons=6
No. Of blue ribbons=x+3=9
No. Of yellow ribbons=x+7=13
The answer would be $3 becaus of x = $12 and y = $9. $12 - $9 = $3.
