Solve for x
3(2х-3) + 4(2-x) = 0

x=.5

Step-by-step explanation:

6x-9+8-4x=0

6x-4x=2x

-9+8=-1

2x-1=0

2x=1

x=.5

the answer is x=0.5

Step-by-step explanation:

6x-9+8-4x=0

2x-1=0

2x=1

x=0.5

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: