Write the word sentence as an equation. then solve. the quotient of a number x and −1.5 is 21

x / -1.5 = 21 and x =

Step-by-step explanation:

x / -1.5 = 21                -Multiply both sides by -1.5

x = -31.5

Check:

-31.5 / -1.5 = 21

21 = 21

Hope this helps you!

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:

step-by-step explanation:

the answer is 128