‼️‼️‼️18 POINTS‼️‼️‼️please help w/ math word problem, YOU MUST ANSWER THE QUESTION WITH THE CORRECT ASNWER TO GET POINTS. also will vote brianest.

Quarter pounder has -580 calories and the Whooper has

1589 calories

Step-by-step explanation:

Let x represent quarter pounders and y represent the Whoppers.

2 QP and 3 Whoppers provide 3607 calories and one of each provide 1009. so let set up the system

Apply subsitution method

Plug the system back into one of the equations and we get

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: