If its 9 dollars per hour than it would be 18 per hour. The independent variable is the how long itll take, and the 15 would be without starting. So it results into B) y=18x+15

3 0

3 years ago

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Item 1 Add. ( x ^2 +1−4 x^ 3 +3 x ^4 )+(− x^ 2 −2 x ^4 + x ^3 +4)

Rzqust [24]

Answer: 5

Step-by-step explanation:

8 0

3 years ago

Skylar plans to use $3400 to open a savings account with an annual interest rate of 1.15%. How much more interest will he earn o

Tanzania [10]

Answer:

$ 2.5

Step-by-step explanation:

Given that

Total Amount to be invested = P = $3400

Total Time of investment = t = 13 years

Rate of interest = r = 1.15 %

Lets calculate Simple interest first

As we know formula for simple interest is

$A = P (1 +r)^{t}$

Substituting the values

$A = 3400(1+ \frac{1.15}{100} )^{13}$

A = $ 3944.9

Lets now calculate the compound interest

As we know formula for simple interest is

$A = P (1 + \frac{r}{n})^{nt}$

As compound interest applies every 3 months so n =3

So,

$A = 3400 (1 + \frac{1.15}{100*4} )^{13*4}$

A = $ 3947.4

Now Lets calculate how much more he will earn using compound interest.

It can be found by taking difference of compound interest and simple interest

Amount = 3947.4 - 3944.9 = $ 2.5

So Skyler must have earned 2.5 dollar more using the compound interest.

8 0

3 years ago