=
Cross multiply. (7)(x) = (5)(x - 2)
7x = 5x - 10
Subtract 5x from both sides.
2x = -10
Divide both sides by 2.
x = -5
Answer:
Y = -8.17
X= -4.936
For the first one
Step-by-step explanation:
4x=26+6y
X = 6.5+1.5y
5(6.5+1.5y)-4y = 8
32.5+7.5y-4y = 8
24.5=-3y
Y = -8.17
X= -4.936
The answer should be 2.25
Answer:
Step-by-step explanation:
Out of 292 drawn Americans over 21, 225 of them don't smoke. That means the rest of them are smokers:
So there are 292 - 225 = 67 smokers here.
We can then calculate the portion of Americans over 21 who smoke:
3-7p=-102
-7p=-102-3
-7p=-105
P=-105/-7
P=15
Hope this helps!