Which best explains how to solve x/3<−2?
1. Divide each side by 3
2. Multiply each side by x
3.Multiply eath side by -2
4.Multiply each side by 3
5.Divide each side by -2

Option 4

Multiply each side by 3

Solution:

Given that,

Remember that,

When we multiply or divide or add or subtract same number on both sides of inequality, the inequality still remains true

Multiply each side by 3

Thus, Multiply each side by 3 is correct

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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