6. You are saving up for adopting a dog. You want to have at least $200 saved.

Arithmetic sequence help!!!

LenKa [72]

Note that you are subtracting 6 each time.

5 terms have been shown.

Multiply -6 with 7 (as you are trying to find the 12th term)

-6(7) = -42

Add - 42 with -25

(-42) + (-25) = -67

(D) -67 is your answer

hope this helps

8 0

3 years ago

Read 2 more answers

The zebra mussel, Dreissena polymorpha, filters particulate organic carbon (POC) from water

Temka [501]

The number of milligrams per liter of POC were in the bay when the zebra mussels were first introduced is 0.4 milligrams per liter.

The expression is an equation

<h3>What is an equation?</h3>

An equation is a mathematical expression that shows the relationship between two quantities.

<h3>How to find how many milligrams per liter of POC were in the bay when the zebra mussels were first introduced?</h3>

Now, since the concentration, c, of POC (in milligrams per liter) remaining in a particular bay m months after the introduction of a population of zebra mussels can be estimated using the following equation c = 0.4 - 0.9m

Now, to find how many milligrams per liter of POC were in the bay when the zebra mussels were first introduced, this would be the initial value of m at 0 months.

So, substituting m = 0 into the equation, we have

c = 0.4 - 0.9m

c = 0.4 - 0.9(0)

c = 0.4 - 0

c = 0.4 milligrams per liter

So, the number of milligrams per liter of POC were in the bay when the zebra mussels were first introduced is 0.4 milligrams per liter.

Learn more about equation here:

brainly.com/question/25976025

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7 0

2 years ago

Ruth contributes 15% of the total cost of her individual health care. This is a $ 60.00 deduction from each of her biweekly payc

german

Answer:

A.) $10,400

Contribution every payday = $60

Pay periods in a year = 26

Step-by-step explanation:

Assume her salary, that is total cost = y

Percentage deduction 15% of total cost

biweekly paychecks = $60

Therefore, 15% of y = $60

(15/100)y = 60

15y = 6000

y = 400

Total value of contribution:

$400 × number of biweeks in a year

If number of weeks in a year = 52

No of bi-weeks = 52/2 = 26

$400 × 26 = $10400

8 0

3 years ago

The management of Ditton Industries has determined that the daily marginal revenue function associated with selling x units of t

barxatty [35]

Answer:

(a) The daily total revenue realized from the sale of 210 units of the toaster oven is $6,195.

(b) The additional revenue realized when the production (and sales) level is increased from 210 to 310 units is $1,400.

Step-by-step explanation:

The marginal revenue gives the actual revenue realized from the sale of an additional unit of the commodity given that sales are already at a certain level. The derivative <em>R'</em> of the function <em>R</em> measures the rate of change of the revenue function.

We know that the daily marginal revenue function is given by

$R'(x) = -0.1x+40$

(a) To find the the daily total revenue you must:

Integrate the daily marginal revenue function,

$\int R'(x)dx = \int(-0.1x+40)dx\\\\R(x)=-\int \:0.1xdx+\int \:40dx\\\\R(x)=-0.05x^2+40x+C$ ,

where C is a constant.

Find the value of C, using the fact that if you sell 0 units your daily revenue is $0.

$0=-0.05(0)^2+40(0)+C\\C=0$

$R(x)=-0.05x^2+40x$

The daily total revenue realized from the sale of 210 units of the toaster oven is

x = 210 units

$R(210)=-0.05(210)^2+40(210)\\R(210)=-210^2\cdot \:0.05+8400\\R(210)=-2205+8400\\R(210)=6195$

(b) To find the additional revenue realized when the production (and sales) level is increased from 210 to 310 units you must:

Find the daily total revenue realized from the sale of 310 units

$R(310)=-0.05(310)^2+40(310)\\R(310)=-310^2\cdot \:0.05+12400\\R(310)=-4805+12400\\R(310)=7595$

The additional revenue realized when the production (and sales) level is increased from 210 to 310 units is

$R(310)-R(210)=7595-6195=1400$

3 0

4 years ago

Y= -2x+ 4

irakobra [83]

First find x: y= -2x+4 so you take that and substitute it into your second equation -x+3(-2x+4)=-9 ---> -7x+12=-9 ---> -7x= 3 ---> x=-3/7
Now you can find y by substituting x: y=-2x+4 ---> y=-2(-3/7) +4 ---> y=

8 0

4 years ago