Answer:
Option D = 5x= 25
Step-by-step explanation:
-1 + 26 = 25
-3y + 3y = 0
2x +3x = 5x
Hence, 5x +0= 25
5x = 25
a) For x = 27:
z = 27-28/2 = -0.5
For x = 31:
z = 31-38/2 = 1.5
From the normal distribution table, P(27 < x < 31) = P(-0.5 < z < 1.5) = P(z < 1.5) - P(z < -0.5) = 0.9332 - 0.3085 = 62.47%
b) For x > 30.2:
z = 30.2-28/2 = 1.1
From the normal distribution table, P(x > 30.2) = P(z > 1.1) = 1 - P(z > 1.1) = 1 - 0.8643 = 13.57%
Move 6x to the right side
2y = -6x - 14
Divide all numbers by 2 to isolate the variable
2y/2 = -6x/2 - 14/2
y = -3x - 7
Answer:
650 miles
Step-by-step explanation:
Plan A 49+.12m where m is the miles
Plan B = 36+.14m
We want where they cost the same, so set them equal
49+.12m = 36+.14m
Subtract .12m from each side
49+.12m-.12m = 36+.14m-.12m
49 = 36+.02m
Subtract 36 from each side
49 - 36 = 36-36+.02m
13 = .02m
Divide each side by .02
13/.02 = .02m/.02
650 = m
Answer: x=17z/4(3z+4)-7/2(3z+4)
Step-by-step explanation: