Answer:
five kids .each 6 sweaters and 9 trousers
Step-by-step explanation:
Started at first floor
went up 18 floors, so now we are at 1+18 or 19th floor
then cam down 11 floors, so now we are at 19-11 or 8th floor
then went up 16, so now at 16+8 or 24th floor
it stopped at 24th floor
5, 11 and 2 are all prime numbers which add together to create 18.
5+11=16+2=18
-7d > 21
d < -3
Remember the sign flips when you multiply or divide by a negative number.
Answer:
I think y=1
Step-by-step explanation:
15y+9y= 24y
24y-10y=14y
divide 14y by 14 and get just y and divide 14 by 14 to get one
y=1
