Answer:
-4/3
Step-by-step explanation:
Slope: (y2-y1)/(x2-x1)
(-5-3)/(-3+9) = -8/6 = -4/3
The slope is -4/3
Answer: 06.45
Explanation: For this problem, it is essential to know that there are 24 hours in a day. With that said, we take our starting time of 16.45 and since we want to know what time it is 14 ahead (addition), we add the two numbers together.
16.45 + 14 = 30.45
Since there are only 24 hours in a day, and we have exceeded that value, we subtract 24.
30.45 - 24 = 06.45
And that is the time in Brisbane.
Alternatively, you can count time in 12-hour format and convert 16.45 to 4.45 pm by subtracting 12.
Knowing your start time is 4.45pm simply add 14 to that (or change the pm to an and add 2 since 14-12=2).
You will again get 6.45am.
Cheers.
The right answer is b
Step-by-step explanation:
You do you do the calculations you get that answer
Answer:
234 books.
Step-by-step explanation:
You need to set up a proportion. Be careful to note what it looks like and the explanation that follows.
9 books 13 magazines
======= = ===========
x 572 - x Cross multiply
What you want is the number of book sales from the proportion.
However all you have is the ratio of books to magazines. So you have to set up the total sales to magazines, which is a bit awkward. 572 - x is the number of magazine sales.
9*(572 - x) = 13x Remove the brackets on the left.
5148- 9x = 13x Add 9x to both sides.
5148 = 13x + 9x Transpose and add the right.
22x = 5148 Divide by 22
x = 5148/22
x = 234
234 books were sold.
