3y+10/4 =2y what is the value of y?

y is equal to 2 since 3.2+10/4 is equal to 4 and 2.2 is equal to 4

The correct answer to this question is: 2

(I can confirm this because I took the test.)

Hope this helped!

Cheers, mate!

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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