1/6 Is Equivalent & Also the simplest form.
Answer:
t = 0.99
Step-by-step explanation:
1.2t - 1.44= 0.25t
first, we add 1.44 to both sides to move it
1.2t - 1.44 = 0.25t
+1.44 +1.44
______________
1.2t = 0.25t + 1.44
second, we want to solve for t, so we must get the variable alone (add 0.25t to 1.2t)
1.2t = 0.25t + 1.44
+0.25t +0.25t
1.45t = 1.44
third, to get t alone we must divide by 1.45 on both sides
1.45t = 1.44
t = 0.9931034483
rounded this would be 0.99
2 is to 4 because 64/8 is 8. 4/2 is 2. 2 x 2 is in proportion to 8 x 8
It takes one pipe x minutes, the other pipe x+3 minutes
the portion filled per minute is by one pipe is 1/x, by the second pipe 1/(x+3)
when two pipes running together:
3&1/3[1/x+1/(x+3)] =1, 1 means the whole cistern
solve for x: 3&1/3(x+3) +3 1/3(x)=x(x+3)
6 &2/3 x +10 =x^2+3x
x^2- (3&2/3) x-10=0
3x^2-11x-30=0
this cannot be factored, so use the quadratic equation:
x is about 5.5
x+3=8.5
It would be 10x8 10 length and 8 width