Joe went to the hobby shop and bought 2 model sports cars at $8.95 each and some paints. if he spent a total of 23.65, what was the cost of the paints? show work, and problem

Cost of paint = 5.75 $

Explanation:

Joe went to the hobby shop and bought 2 model sports cars at $8.95 each.

Number of models of sports car bought by Joe = 2

Price of each model sports car = $8.95

Total price of 2 model sports cars = 8.95 x 2 = 17.90 $

Total money he spent = 23.65 $

Cost of paint = Total money he spent - Total price of 2 model sports cars

                     = 23.65 - 17.90 = 5.75 $

Cost of paint = 5.75 $

Cost of the paints is $5.75 only.

Step-by-step explanation:

Since we have given that

Cost of each model sports cars = $8.95

And he bought two model sports cars.

Let cost of some paint  be x

Since we know that

Total money he spent = $ 23.65

Now,

According to question,

So, Cost of the paints is $5.75 only.

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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