63 dollars 3 hours
21 dollars 1 hour
Answer:
c
Step-by-step explanation:
i did it in a test and i used a calculator
Answer:
2 hrs 13 mins
Step-by-step explanation:
If Richard can paint the living room in 4 hrs, then in 1 hour he can paint 1/4 of the living .
If Vanessa can paint the living room in 5 hours, then in one hour, she can paint 1/5 of the living room.
In one hour Richard and Vanessa can paint 1/4 + 1/5 = 1/y
y is the number of hours it will take both Richard and Vanessa to paint the living room. 1/y is how much of the house they can paint in one hour.
1/4 + 1/5 = 1/y
(5 + 4)/20. ( find the LCM)
9/20 = 1/y
9y= 20
y = 20/9
y = 2.22hrs
y = 2 hrs 13 mins
Answer:
5cm
Step-by-step explanation:
50mm ÷ 10 = 5cm
2003: 35000
2004: 35000 + 2700 = 37700
2005: 37700 + 2700 = 40400 (and so on)
2006: 43100
2007: 45800
2008: 48500
2009: 51200
