Solve this inequality for x: -46 − 8x > 22.
A.
x -8.5
D.
x > 8.5

A. x < -8.5

Step-by-step explanation:

add 46 to both sides.

-8x > 68

divide both sides by -8, and because you're dividing by a negative, the inequality sign flips.

x < -8.5

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step-by-step explanation:

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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