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3 years ago

Elvira wants to predict how much her cable television service will cost each month. She pays a

Mathematics

1 answer:

lesya692 [45]3 years ago

8 0

Answer:

The answer is (C) Y = 69.99 + 4.99x

Step-by-step explanation:

x represents the number of movies ordered by Elvira.

69.99 is the constant Elvira has to pay for her cable service.

As we can see on the answer (C) the 4.99 is multiplied by x which represents the number of movies ordered by Elvira and she is charged 4.99 for each one so the logical thing to do is that we multiply 4.99 by x (number of movies ordered) then we add 69.99 to the product of 4.99x and we get the total amount Elvira has to pay this month

So the formula to find how much Elvira has to pay this month would be (C) y = 69.99 + 4.99x.

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In a study of the stability of IQ scores, a large group of individuals is tested once at age 18 and again at age 35. The followi

Naddika [18.5K]

Answer:

112

Step-by-step explanation:

Given that in a study of the stability of IQ scores, a large group of individuals is tested once at age 18 and again at age 35.

Age 18: average score = 100, SD = 15

Age 35: average score = 100, SD = 15, r = 0.80

Let us obtain regression equation of y on x.

Let y be the scores at age 35 and x at age 18

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Hence regression line would be

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a) Here given that x =115

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5 0

3 years ago

An investor bought an antique table for $6000. He paid 5% as a deposit and borrowed the remainder from a bank for two years at 1

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First lets get rid of the deposit.
(0.95*6000)=5700

Formula is I=PRT
I= Interest earned
P=Principal amount (5700)
R=Rate (18% or 0.18 or 18/100)
T=Time period (2 years)
Equation:
I= 5700*2*0.18
I= 2052
But remember the question asks for monthly payments!
2052/24 (12 months in a year and T= 2 years)
Answer=$85.50

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3 years ago