If Tommy can paint a fence in 7 hours, he paints 1/7 of a fence in 1 hour.
If Huck and Tommy get one fence done in an hour, Huck must be able to complete 1-(1/7)=6/7 of a fence in one hr.
6/7x=1
x=7/6
Final answer: 1 hour, 10 minutes
18 students are 100%-37,5%-40%=22,5%
18 students - 22,5%
x students - 100%
22,5x=18×100
x=80
Answer: 80 students
Answer:
(A.) x = y - 4
Step-by-step explanation:
All you need to do is subtract the 4 from both sides, giving you the final equation as x = y - 4.
Brittany gets payed 2/3 per dog Ben walks for her . if Ben makes 4.50 filling in for Brittany, she gets to keep $3.75
(cross out the first 2 -- that becomes a 1 and the 2 in .25 becomes a 12 and you do 12-7)
2.25
-0.75
____
1.50
(.75+.75+.75=2.25)
2.25+2.25=4.50
4.50
-0.75
____
3.75
(cross the 4 out and make it 3 , cross the 5 out and make it 14 , cross the 0 put and make it 10. then subtract 5 from 10 , 7 from 14 , and you can't subtract the 3 from anything)