Answer:
-3, -2.4, -2 1/4, -1.5, -1 1/8
Step-by-step explanation:
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80/9
= (72+8)/9
= 72/9+ 8/9
= 8+ 8/9
= 8 8/9
80/9 as a mixed number is 8 8/9~
Answer:
36
Step-by-step explanation:
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Answer:
9
Step-by-step explanation:
Since drainage is to be included in the possible combinations, we can therefore determined the number from the remaining 6 options which can be in combination with drainage
(6 2) = 15 pairs.
Now there are restrictions placed, where we have no pairing of damp roofing with bricklaying or plastering. This removes two pairs, so we are left with 13pairs.
Another restrictions is that students choosing Joinery must also choose Flooring. This gives the three options: joinery, flooring and drained with no pairing with the remaining four pairs this removing another four pair.
So we are left with 9 pairs in total.
