If John can paint half of a room in two-thirds of an hour, what part of the room can he paint in a full hour?
1 answer:
Answer:
<h2>0.75(3/4) part of the room</h2>
Step-by-step explanation:
Step one:
given data
we can express the given data mathematically as
John can paint 0.5room in 2/3 hours
let the part of the room he can paint in an hour be x
so
if he takes 2/3 hours to paint 0.5 room
then he will take 1 hour to paint x
cross multiply we have
x= 0.5/2/3
x=0.5*3/2
x= 1.5/2
x=0.75 part of the room
75/100= 15/20=3/4 part
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M=4/5
you find a point that is exact like (20,60)
22 is the greatest known factor
Answer:
The answer you should get is 9:3
Step-by-step explanation:
Inequality would be: 22 + 17x ≤ 80
Where, x = Number of shirts, that he can buy
Solving: 17x ≤ 58
x ≤ 58/17
x ≤ 3.41
In short, He can buy 3 shirts only.
Hope this helps!
3²x-4(3²x+1)+27=0
9x-4(9x+1)+27=0
9x-4×9x-4×1+27=0
9x -36x -4 +27=0
9x-36x= 4-27
-27x= -23
x= -23/-27
x= 23/27
