Ask question

Ask question

All categories

3 years ago

6

What’s the correct answer for this question?

1 answer:

zepelin [54]3 years ago

5 0

Half of its original value=

$\frac{1350}{2} \\ =675$

Years for the television set to be worth half of its original value=

$\frac{675}{2}\\ =4.0909...$

≈ 4.1

You might be interested in

This question has two parts. First answer Part A, then answer Part B. Part A

rodikova [14]

Answer:

A. $a_n=2a_{n-1}$

B. 160

Step-by-step explanation:

Silvia does 5 sit-ups on the first day of her exercise program. Each day thereafter she does twice as many sit-ups as the day before. Hence

1st day - 5 sit-ups

2nd day - 10 sit-ups

3rd day - 20 sit-ups

...

A.

$a_1=5\\ \\a_2=2a_1\\ \\a_3=2a_2\\ \\...\\ \\a_n=2a_{n-1}$

The recursive formula that models the number of sit-ups she does each day is

$a_n=2a_{n-1}$

B.

$a_6=2a_5=2\cdot 2a_4=4\cdot 2a_3=8\cdot 2a_2=16\cdot 2a_1=32\cdot 5=160$

7 0

3 years ago

Read 2 more answers

By your cell phone contract, you pay a monthly fee plus some money for each minute you use the phone during the month. In one mo

Andrei [34K]

Answer:

(a) $y = 0.025x+15$

(b) 18.5 minutes

(c) 450.4 minutes

Step-by-step explanation:

Given

$290\ minutes = \$22.25$

$360\ minutes = \$24.00$

Solving (a): Determine the linear equation

First, we need to calculate the slope (m)

$m = \frac{y_2 - y_1}{x_2 - x_1}$

Where

$(x_1,y_1) = (290,22.25)$

$(x_2,y_2) = (360,24.00)$

So, we have:

$m = \frac{24.00 - 22.25}{360 - 290}$

$m = \frac{1.75}{70}$

Multiply through by 100

$m = \frac{1.75 * 100}{70 * 100}$

$m = \frac{175}{7000}$

Next, is to calculate the equation of the line using:

$y - y_1 = m(x - x_1)$

Recall that:

$(x_1,y_1) = (290,22.25)$

$m = \frac{175}{7000}$

$y - 22.25 = \frac{175}{7000}(x - 290)$

$y - 22.25 = \frac{175x}{7000} - \frac{175}{7000} * 290$

$y - 22.25 = \frac{175x}{7000} - \frac{50750}{7000}$

Add 22.25 to both sides

$y = \frac{175x}{7000} - \frac{5075}{700} + 22.25$

$y = \frac{175x}{7000} + \frac{-5075 + 15575}{700}$

$y = \frac{175x}{7000} + \frac{10500}{700}$

$y = 0.025x+15$

(b) Solve for y when x = 140

$y = 0.025x+15$

Substitute 140 for x

$y = 0.025 * 140 + 15$

$y = 3.5 + 15$

$y = 18.5$

(c) Solve for x when y = 26.25

$y = 0.025x+15$

Substitute 26.25 for y

$26.25 = 0.025x + 15$

Solve for 0.025x

$0.025x = 26.26 - 15$

$0.025x = 11.26$

Solve for x

$x = 11.26/0.025$

$x = 450.4\ minutes$

3 0

3 years ago

I need help with both of em

FinnZ [79.3K]

On 16 you divide 18 by 2 then take the answer from that and add that with 2

4 0

3 years ago

Read 2 more answers

Haddie wrote a check to the grocery store for $156.00. However, when she looks at her check register later that night, she sees

evablogger [386]

Haddie wrote a check to the grocery store for $156.00. And turns out to only become 122.66 dollars the time she checked it later that night.Now, when she checked it in her banks, I believe there are fees charged to her written check. Now, let's find out how much will that be:=> 156 dollarss to 122.66 dollars=> 33.34 dollars=> 33.34 / 156 =0.21=> 0.21 * 100% = 21%<span>Thus, the bank opted 21% of her written check</span>

5 0

3 years ago

Combine and Simplify

-Dominant- [34]

Combine like terms (terms with the same variable (letter)). Remember to bring the sign.

4c - 4d + 8c - 3d

4c + 8c = 12c

-4d - 3d = -7d

12c - 7d is your answer

hope this helps

5 0

3 years ago

Read 2 more answers