A 1-ounce serving of baked potato contains 45.3 calories, and a 1-ounce serving of chicken contains 22.6 calories Estimate to the nearest whole number how many calories are in a meal of 2One-fourth ounces of chicken and a 2One-third ounce baked potato

155 calories

Step-by-step explanation:

Using proportion,

If 1 - ounce serving of baked potato = 45.3 calories

  ounces = ?

=   ÷ 1 * 45.3

=  101.9 calories

1-ounce serving of chicken contains 22.6 calories

ounces = ?

= ÷ 1 * 22.6

= 52.7 calories

∴ Total calories = (101.9 +  52.7) calories

                           = 154. 6 calories which is approximately 155 calories.

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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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