9,6^2+18,8^2=X^2
92,16+353,44=X^2
X^2=445,6
X=21
For 1 hour:
- Jennifer can clean 1/2 of her room;
- John cal clean 1/5 of her room.
Both can clean: 1/2 + 1/5 = 5/10 + 2/10 = 7/10
1 hour -------- 7/10
x hours---------- 1
x = 1 : 7/10 = 10/7 h = 1.42857 h ( or 1 h 25 min 43 s )
Answer:
$12.65
Step-by-step explanation:
i caculated that
Answer: H
Step-by-step explanation:
Supplementary angles just mean they add up to 180 degrees. 180 degrees means that when the two angles are put together one of each of their sides will form a straight line.
Answer:11
Step-by-step explanation: think about 5+6 then when you add 11 to the -5 you get 6.
