X-y=11
2x+y=19
add them
x-y=11
<u>2x+y=19 +</u>
3x+0y=30
3x=30
divide 3
x=10
sub baack
x-y=11
10-y=11
minus 10
-y=1
times -1
y=-1
(x,y)
(10,-1)
Let X be a random variable representing the weight of a pack of cookies.
P(X < 250) = P(z < (250 - 255)/2.5) = P(z < -5/2.5) = P(z < -2) = 1 - P(z < 2) = 1 - 0.97725 = 0.02275 = 2.3%
Therefore, we conclude that about 2.3% of the packs weighed less than 250 grams.
hey, u didn’t rlly attach anything :/
Answer:
its 6x ,6 and 3(y+2)
Step-by-step explanation:
My ArT hErE yOu Go
█▀█ █▀█ █▀▀
█▀▀ █▄█ █▄█
█▀█ █▀█
█▄█ █▀▀
Step-by-step explanation:
x=20
y=100
solution in image
