The answer is d.
to find the slope you can do y2-y1/x2-x1
8-(-1)/3-0= 9/3 or 3
you can then put one of the points into the slope intercept form y=mx+b or 8=3(3)+b
you get 8=9+b. you subtract 9 from both sides to get -1=b. y intercept means that the point is (0,-1)
Let the original amount be x so ,
according to question,
3x/5 + 1x/5 + 1200 = x
or, 1200 = x - 4x/5
or, 1200 = 1x/5
or, x = 6000
Let the average of the other nine cities be x, then the population of the nine districts is 9x. The total population of the city is a + 9x. But a = 3x. Hence, the total population is 3x + 9x = 12x.
Therefore, the percent of the city's population living in district a is 3x/12x * 100 = 25%
Answer:
-56
Step-by-step explanation:
t=-9 u=7
(-9)(7) + (7) =
-63 + (7) =
-56
Answer:
∠ LOM = 48°
Step-by-step explanation:
∠ LOM +∠ MON = 180 ( straight angle ), that is
7x - 92 + 6x + 12 = 180
13x - 80 = 180 ( add 80 to both sides )
13x = 260 ( divide both sides by 13 )
x = 20
Thus
∠ LOM = 7x - 92 = 7(20) - 92 = 140 - 92 = 48°
