Answer: There all even on all sizes.
Step-by-step explanation:
Rate for Sally is 1 room per 8hrs
rate for Steve is 1 room per 7hrs
combined rate:
1/8 + 1/7 = 1/T
7/56 + 8/56 = 1/T
15/56 = 1/T
56/15 = T
3 11/15 = 3 hrs 44 min
Answer:the answers is 88 1/2
Step-by-step explanation:
Answer:
Step-by-step explanation:
first ask teacher
second be polite
third ask help from your peers
Answer:
-52.5 or -53
Step-by-step explanation:
Start by subtracting 18 from both sides. With you get 0.4=-21. Now divide 0.4 into both sides.
