900/45 = 20
so ratio of middle school students and teachers: 900:45 = 20:1
if high school student-teacher ratio as middle school then
x/110 = 20/1
so x = 110 * 20 = 2200
answer is C) 2200
If she goes 75 mph for 2 hours, that's 150 miles altogether. 45 mph for 1 hour is 45 miles, so 150 + 45 is 195 miles.
There will be no solutions because the lines have the same slope (-4) meaning they are parallel to each other and will not cross.
Hope this helps!!
Y=-3x-1
bc the y intercept is -1 and the slope is -3
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