A recipe for trail mix uses 7 ounces of almonds with 5 ounces of raisins. (Almonds and raisins are the only ingredients.) How many ounces of almonds would be in a one-pound bag (16 ounces) of this trail mix?

x = 9 1/3 ounces of almonds

Step-by-step explanation:

Ounces of almonds : raisins

= 7 : 5

Total = 7 + 5

= 12

How many ounces of almonds would be in a one-pound bag (16 ounces) of this trail mix

Let

x = Ounces of almonds needed

x = 7 /12 × 16

= 112 /12

= 9 4/12

= 9 1/3

x = 9 1/3 ounces

the answer is 15% decrease

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: