Answer: 3/4
Step-by-step explanation: Doing order of operations we first do 7x1=7, then 7-4=3, then finally do 4x1/4=3/4.
Hope this helps! :)
Your goal is to get h by itself -18(2h+4)+12=-74
first distribute
-36h-72+12=-74
second combine like terms
-36h-60=-74
third get h by itself by adding 60 to the other side
-36h=-14
forth divide -36
h=0.38
to check your answer you plug in your answer to the equation and you'll get -73.68 but round it to nearest 10th you get -74
5/8 + 7/8 is 12/8
12/8 = 1 4/8
1 4/8 + 13 = 14 4/8
14 4/8 = 14 2/4 = 14 1/2
14 1/2
Suppose the time taken for the repairman to fix one pair of shoes is x, time taken by the assistant will be 1.5x.
The number of shoes repaired by shoe man in an hour will be:
1/x
the number of shoes prepared by assistant in 1 hour will be:
1/1.5x
the number of shoes repaired by both of them in 1 hour will be:
8/20
hence;
1/1.5x+1/x=8/20
2.5/(1.5x)=2/5
cross-multiplying our equation we get:
2.5*5=1.5x*2
7.5=3x
x=7.5/3
x=2.5 hours
therefore we conclude that it takes the repairman 2.5 hours to fix one pair of shoes.
