If g is the number of girls in a class and b the number of boys and if there are eleven more girls (g) than boys (b) in a class, write an algebraic equation that shows this relationship.
The equation is ?

g = 11 + b

Step-by-step explanation:

Step 1:  Make an equation

If there are eleven more girls (g) than boys (b) in a class.

g = 11 + b

 g = 11 + b

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:

b

step-by-step explanation: