Answer:
Final answer is slope = 0.73
Step-by-step explanation:
Given that an old house has a basement stairway.
Stairway has steps with 7.25 inch vertical risers and 10 inch horizontal treads. Now we need to find about what is the slope of the stairway. Also round the answer to two decimal places.
Now round that value to two decimal places gives 0.73
Hence final answer is slope = 0.73
The correct answer is c (2x+10)
I think her error was that she multiplied he numbers wrong
7/2
The expression that best estimates 6 3/4 divided by 1 2/3 is 7/2. 6 3/4 (or 6.75) divided by 1 2/3 (or 1.66...) comes out to 4 1/20 (or 4.05). The closest value to this in the options available is 7/2 (or 3.5). This answer is only .55 away from the correct value, while the rest of the options are far less close.
Answer:
2:9 4:8
8:3 24:6
9:7 3:2
18:15 6:6
18:12 12:16
10:40 5:9
12:16 6:7
12:36 12:18
45:15 4:5
those in bold are the answer
