Answer:
2y+10/y
Step-by-step explanation:
Plato
(x+9)^2 = x^2 +9
x^2 +18x + 81 = x^2 +9
18x = -72
x = -4
Let the number of goats be 'x'.
Therefore, the number of chicken will be 50-x
Total number of legs the goats will have= 4x (goats have 4 legs)
Total number of legs chickens will have= 2(50-x) (chickens have two legs).
4x + 2(50-x)=140
4x+100-2x=140
2x+100=140
2x=40
x=20.
There are 20 goats and 30 chickens.
We are given with the number of jumps per student. To get the mean, we simply have to add all of them and divide by the number of students
mean number of jumps = <span>203 + 245 + 237 + 233 + 90 + 100 + 100 + 277 + 265 + 264 + 265 + 285 + 288 + 291 + 291 + 290 + 300 + 224 + 200 + 257 + 290 + 279 + 266 + 288) / 24
To get th median, arrange the data from lowest to highest and determine the middle value.</span>
-1/5x - 18 = 2
-x - 18(5) = 2(5)
-x = 10 + 90
-x = 100
x = -100