Answer:
7/12
Step-by-step explanation:
1/3+1/4
convert to twelfths
4/12+3/12
7/12
5000 times 2222= 11110000
The first and last one are similar
Answer:
Parallel lines
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = x + 3 ← is in slope- intercept form
with slope m = 1
- x + y = 7 ( add x to both sides )
y = x + 7 ← in slope- intercept form
with slope m = 1
Parallel lines have equal slopes, thus the lines are parallel
Answer:
The grade of the tracks between these two stations is 2.65625%
Yes, this grade meet the rapid-transit rail standards
Step-by-step explanation:
Consider the provided information.
the maximum grade allowed between two stations in a rapid transit rail system 3.5%.
Between station A and station B, which are 320 ft apart, the tracks rise ft.
Here we need to find the slope of the tracks, because the slope of the track is the gradient of the track.
Here the rise is 8.5 ft and the run is 320 ft.
Substitute the value of rise and run as shown.
0.0265625×100=2.65625%
2.65625% is less than 3.5%
Hence, this grade meet the rapid-transit rail standards