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$0.75

Step-by-step explanation:

Given

← divide numerator and denominator by 4

= = = 0.75

The price per mango is $0.75

$0.75 per mango

Step-by-step explanation:

To work this out you would simply divide the price of $3 by the quantity of 4, which gives you $0.75. This is because the price of 4 mangoes is given and to find the price of 1 you would divide 3 by 4.

The price per unit

1) Divide 3 by 4.

Double checking:

To double check your answer you would just multiply 0.75 by 4, which gives you 3. If in this example the answer is 3 then the  price per unit is correct.

1) Multiply 0.75 by 4.

what are the answear choices to the question.

step-by-step explanation:

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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