Answer:
A: 39.1304348% OR 39%
B: 33.3%
Step-by-step explanation:
Part A:
find the total amount of children: 90+20+80+40=230
90-20=50
i got this from taking away the amount that like watching tv and not reading so from this you know 50 of those 90 that like watching tv also like tv and reading.
80-40=40
(same explanation as 90-20=50)
then do 50 +40 which equals 90
now you need to turn it into a percentage.
90/230=
9/23
=39.1304348%
if you need round it, do so!
Part b:
40+20=60
20/60= 2/6
=1/3
=33.3%
Answer:
y= -1 and x = 10
Step-by-step explanation:
The slope of the line that contains the points (1 -1) and (-2 8) is -3
Step-by-step explanation:
Slope measures the steepness of a line. It is the ratio of vertical change to horizontal change. If the line increasing, the slope is positive and if the line is decreasing the slope is negative. If the line is horizontal slope is zero and if the line is vertical slope is undefined.
Equation for slope = (y2-y1)/(x2-x1)
here y2= 8
x2=-2
y1=-1
x1=1
Substituting the following,
slope = (8+1)/(-2-1)
=9/-3
=-3
hence the slope is -3
Answer:
2,520 meters
Step-by-step explanation:
Just multiply :)
Answer:
reverse percentage
20% = 18
find 1% by dividing both sides by 20
1%= 0.9
find 100% by multiplying both sides by 100.
100%=90
