9514 1404 393
Answer:
$6.80/fortnight
Step-by-step explanation:
You need to know there are 13 weeks in a quarter, and 2 weeks in a fortnight. The conversion is straightforward.
6x-6+6~-2x6/5 that it okay
V initial = l*w*h;
V final = (2/3)l*(2/3)w*(2/3)h = (l*w*h)*(8/9) = V initial * (8/9) ;
Let x = what amount
Rewrite 12 1/2 as 25/2.
(25/2)(x) = 10.40
Take it from here. Solve the equation for x.
You can remove the first plus sign to give:
-1.3 -4.9 [ because + x - = - ]
and by the same rule you can remove the the second plus sign to give
-1.3 -4.9 - 2.6
That means option b is out because it is positive.
straight away we can see that option D. equals the result, so it is in the running, so now can we eliminate c and a?
we can eliminate a because the minus ign outside the bracket multiplied by -4.9 inside the bracket produces + 4.9, which is not the answer, so that only leaves c.
once again, a plus sign outside the bracket does not produce -4.9 when muliplied by 4.9 inside the bracket inside option c, so we can eliminate option c.
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Answer (D)
