Answer:
3y(2
- 9x + 12y)
Step-by-step explanation:
Part A:
The GCF of 6, 3, 24, and 12 is 3:
so 3(2y - xy - 8xy + 12
)
= 3(2y - 9xy + 12)
Also y is also common so:
= 3y(2 - 9x + 12y)
Part B:
3y(2 - 9x + 12y)
Just say that you used division to get the answer 5 (59.95 divided by 11.99)
ration? You deserve better from your teacher.
The ratio of auditorium to theater seats is
1200:320
That's a perfectly valid answer and we could stop here if we weren't asked for lowest terms. Here I can see that 12 and 32 have a common factor of 4 and both these end in zero so 40 is a common factor:
1200:320 = 30:8
We can keep reducing by another factor of 2,
1200:320 = 30:8 = 15:4
There's our 15/4, which we get when we write the ratio as a fraction.
Answer: 15/4
--------------------------
This question implies a ratio is just a fraction, which it isn't. Let's quickly note the differences.
A ratio can have zero on either side; 1:0 is a perfectly valid ratio but 1/0 is not a valid fraction. A ratio can't be all zeros -- that's not allowed.
A ratio can have more than two numbers. 3:4:5 is a common ratio that gives rise to a right triangle.
Like fractions, ratios can be reduced: For λ≠0,
λa : λb : λc = a:b:c
So 20% of $1,080 is 216.
1080 - 216 is 864
8% of 864 is 69.12
864 + 69.12 would be $933.12
