Ben solve the equation using the steps shown below. 1
2
3
4
5
6
5(x - 2) - 5 = 20
5x - 10 - 5 = 20
5x - 15 - 20
5x - 15 + 15 - 20 + 15
5X = 35
5x 35
5 5
X= 7
7
Select the correct justification to represent the solving of the equation from Step 2 to Step 3?
А
Division Property of Equality
B
Addition Property of Equality
Combine Like Terms
Subtraction Property of Equality

step-by-step explanation: yes

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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step-by-step explanation:

f(x)=2/3x-8, which give g(x) the greatest value.

step-by-step explanation: