Answer:
24. 40 minutes approximately
25. 8 days
Step-by-step explanation:
24. 40 minutes
Anna: 1 hour
Peter: 3 hours
Maria: 6 hours
A way to solve this kind of question is to think about how much they can perform given the same amount of time.
Anna: 1 hour x 6: 6 hours (In 6 hours Anna can clean 6 houses)
Peter: 3 hours x 2 6 hours (In 6 hours Peter can clean 2 houses)
Maria: 6 hours x 1: 6 hours (In 6 hours Peter can clean 1 house)
Working together they can clean the house 9 times faster.
It is 0.66 hours, or approximately 40 minutes
25. 8 days
It climbs 3 feet up but then it falls 2 feet down while sleeping during
the night. So the snail actually climbs 1 foot every day. It happens in the first 7 days. On the 8th day it goes out before sleep.
Answer:
0.8
Step-by-step explanation:
Please let me know if you want me to add an explanation as to why this is the answer/how I got this answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)
7 + 1.25m = 43.25
1.25m = 43.25 - 7
1.25m = 36.25
m = 36.25 / 1.25
m = 29....so Raymond was on the trampoline for 29 minutes
< x is 90 degrees because triangle ABC is isosceles and AD bisects < BAC.
Triangle BAD is right angled so < y = 90 - <ABD
<ABD = <ACD ( because triangle ABC is isosceles
So < ABD = 47 degrees
Finally y = 90 - 47 = 43 degrees answer
Answer:
It dropped 8 degrees so the answer must be -8
Step-by-step explanation:
