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3 years ago

A cell phone company charges $40 per month plus a $35 activation fee. Write an expression for the total cost for m montha.

1 answer:

Pie3 years ago

6 0

For the first month it will be $40 for the service and $35 to activate the phone service. After the first month it will only be $40 but for the first month it will be $75

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WILL MARK BRAINLIEST In a scavenger hunt through the city, Item 1 lies due north

Nady [450]

siiiiiimmmmmmmppppppllllle it is A

6 0

3 years ago

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A chef is going to use a mixture of two brands of Italian dressing. The first brand contains 9% vinegar, and the second brand co

kobusy [5.1K]

So, the first brand has 9% vinegar, and say we use "x" amount of it, then, the amount of vinegar in "x" is 9% of x, or (9/100) * x, 0.09x.

the second brand has 14% of vinegar, and if we use say "y" amount of it, then the amount of vinegar in "y" is really just 14% of "y" or, (14/100) * y, 0.14y.

$\bf \begin{array}{lccclll}
&\stackrel{mL}{amount}&\stackrel{\%}{concentration}&\stackrel{amount}{concentration}\\
&------&------&------\\
\textit{first brand}&x&0.09&0.09x\\
\textit{second brand}&y&0.14&0.14y\\
------&------&------&------\\
mixture&230&0.13&29.9
\end{array}$

so, whatever "x" and "y" are, we know that x + y = 230.

and we also know that their concentration amounts will also add up, 0.09x + 0.14y = 29.9.

$\bf \begin{cases}
x+y=230\implies \boxed{y}=230-x\\
0.09x+0.14y=29.9\\
----------\\
0.09x+0.14\left(\boxed{230-x} \right)=29.9
\end{cases}
\\\\\\
0.09x+32.2-0.14x=29.9\implies -0.05x=-2.3\implies x=\cfrac{-2.3}{-0.05}
\\\\\\
x=46$

how many milliliters will it be for the second brand? well, y = 230 - x.

3 0

3 years ago

omg guys imagine sneezing all day and then next thing hourssss later boom you lost your voice has that ever happened to you

katrin2010 [14]

Answer:

no lol

Step-by-step explanation:

6 0

2 years ago

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I don't understand what to do because I don't understand the question

kirill [66]

Find the 2 different rates at which the farm worker worked:

3 pints
--------- = 0.75 pint/min
4 min

2 pints
---------- = 0.67 pint/ min
3 min

Then you need to subtract 0.67 pint/min from 0.75 pint/min to answer this question.

Alternatively, subtract 2/3 pint/min from 3/4 pint/min.

4 0

3 years ago

The local operations manager for the Internal Revenue Service must decide whether to hire one, two, or three temporary tax exami

Helga [31]

Answer:

If she uses the Laplace criterion, the number of new examiners she will decide to hire is:

c. three

Step-by-step explanation:

a) Data:

Number of Compliance

examiners Low Normal High

One 50 50 50

Two 100 60 20

Three 150 70 -10

b) Outcome Calculations:

Number of Compliance

examiners Low Normal High

One 16.65 (50 *.333) 16.65 (50 *.333) 16.65 (50 *.333) = 50

Two 33.3 (100 *.333) 19.98 (60 *.333) 6.66 (20 *.333) = 60

Three 49.95 (150 *.333) 23.31 (70 *.333) -3.33 (-10 *.333) = 70

c) Decision:

Three has the highest payoff condition and is selected.

d) The Laplace criterion assumes that each compliance state is equally likely to happen. Therefore, it assigns the same weight to each state of compliance. Since there are three states of compliance, we shall assign each state a weight of 0.333. The number of examiners that have the highest payoff condition is three, and therefore, the number "three" is selected.

5 0

3 years ago