2/3x = 6/7 - 1/2
2/3x = 12/14 - 7/14
2/3x = 5/14
x = 5/14 . 3/2
x = 15/28
First one 3/4>1/4 second 5/7< 6/7 third 2/10<8/10
1. arithmetic, arithmetic, geometric
2. 3, 6, 9, 12, 15
3. -7n + 5
4. 2.4
5. 45
6. 4n + 137
Answer:
(-3, 3)
Step-by-step explanation:
Substitute for y:
x+6 = -2x -3
3x = -9 . . . . . . . add 2x -6 to both sides
x = -3 . . . . . . . . divide by 3
y = (-3) +6 = 3 . . substitute for x in the first equation
The solution is ...
(x, y) = (-3, 3)
Answer:
0.86 (Approx)
Step-by-step explanation:
Given:
n = 35
P = 55% = 0.55
Q = 1 - p = 0.45
Computation:
Standard deviation σ = √npq
Standard deviation σ = √(35)(.55)(.45)
Standard deviation σ = 2.9432
Mean μ = np = 35 x 0.55 = 19.25
p[(x-np)/ σ ]
P[z<1.04204]
= 0.86 (Approx)