All categories

3 years ago

Jana opened a savings account with

Mathematics

1 answer:

taurus [48]3 years ago

6 0

Answer:

f(w) = $100 + $15*w

Step-by-step explanation:

The first $100 she deposited remain always the same, they don't change depending on the weeks. What increases along the weeks are the $15.

In the first week she will deposit $15, so she will have $100 + $15 = $115.

On the second week she will deposit $15 more, so she will have $115 + $15 = $130. Another way of writing this is $100 + $15 + $15 = $100 + $15*2.

On the third week she will have $100 + $15 + $15 + $15 = $100 + $15*3.

Therefore, after w weeks, she will have $100 + $15*w.

The function we are looking for is f(w) = $100 + $15*w

You might be interested in

The opening balance of one of Jennies 30-day billing cycles for her credit card was $1220, and it remained that amount for the f

natima [27]

Answer:

1) 2.71%

2) $38.32

Step-by-step explanation:

Opening balance = $1220

Balance after 10 days (after expense) = $1690

Balance after 10 days(after payment) = $1340

APR = 33%

1) Periodic interest rate = APR × $\frac{No. of days in a billing cycle}{365}$

= 33%× 30/365

= 2.71%

2) Interest charged for first 10 days = $\frac{1220*2.71*\frac{10}{30} }{100}$

= $11.02

Interst charged for the next 10 days = $\frac{1690*2.71*\frac{10}{30} }{100}$

= $15.2

Interest charged for the next 10 days = $\frac{1340*2.71*\frac{10}{30} }{100}$

= $12.10

Total interest for 30 days = 11.02+15.2+12.10

= $38.32

6 0

3 years ago

F(-4); f(x) = x2 + x - 4

Ugo [173]

Answer: 8

Step-by-step explanation: In this problem,

we're asked to find f(-4) or the value of the function when x = -4.

To find the value of the function when x = -4,we simply plug in a -4 for

the x in our function and we have (-4)² + (-4) - 4 or 16 + -4 - 4 which is 8.

So f(-4) = 8.

4 0

3 years ago

The table below represents a linear function f(x) and the equation represents a function g(x):

9966 [12]

Answer:

<u>Use 2 points from he table to find the slope of f(x):</u>

(0, -1) and (1, 7)

<u>The slope is:</u>

m = (7 - (-1))/1 = 8

The y - intercept is b = -1 according to point (0, -1).

<u>The lines are:</u>

f(x) = 8x - 1
g(x) = 3x - 2

The f(x) has greater slope since 8 > 3 and greater y-intercept since -1 > - 2.

See above

8 0

3 years ago

A builder is installing a fence on all four sides of a backyard. The yard is 40 feet long and 50 feet wide. How much fencing wil

MaRussiya [10]

40 plus 40 50 plus 50 would be 180 so the awnser is 180

8 0

3 years ago

Read 2 more answers

Find the difference- (ab+3a+7)- (-5ab-2)

coldgirl [10]

3 0

3 years ago