Answer:
44d+66
Step-by-step explanation:
Your Answer: 0.04884882
Hope This Helped
First, convert the 90 feet of the real plane to inches so that you can find the scale:
90 x 12 = 1080
Now, divide the inches of the real wing span by the inches of the model wing span:
1080/18
Now you want to simplify. The easiest way to start is dividing the top and bottom by 2:
540/9
Now try dividing the top and bottom by 9:
60/1
So your scale is 1 inch of model airplane to 60 inches of actual airplane.
For #7,
2 3/8% < 2 1/2% < 2 2/3% < 2 4/5%
For #8,
<em>The answer is $80, here's how:</em>
$32 = 40%
100% = ?
(I don't really know a way better than this, sorry, even tho I am sure of the answer)
40% ÷ 2 = 20%
32 ÷ 2 = 16 <em>
20% = 16
</em>100% = 40% + 40% + 20%
<em>100% = 32 + 32 + 16
</em>100% = $80
<em>
</em>
Answer:
3n+2(n+2)=9n+12
3n+ 2n + 4 = 9n + 12
3n+ 2n +4 - 4 = 9n + 12 - 4
3n + 2n - 9n = 12 - 4
5n - 9n = 8
<u>-4n </u> = <u>8</u>
-4. -4
n. = - 2