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Alex777 [14]
3 years ago
10

An editor gets $2890 raise each year. In her eighth year, she is making $27,400 per year. Write a function that represents her i

ncome after x years she has worked at the company
Mathematics
1 answer:
timama [110]3 years ago
4 0

Answer: 7170+2890x

Step-by-step explanation:

Given

Editor gets a raise of \$2890 each year

In her eighth year, she is making \$27,400

Eighth years refers to 7 complete year

Suppose she starts with an amount of P

So, her pay after x years is

\Rightarrow P+2890x

for the eighth year i.e. x=7

\Rightarrow P+2890\times 7=27400\\\Rightarrow P=27400-20230=\$7170

after x years it is

\Rightarrow 7170+2890x

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Add 280.00 +21.40 +6.30 +.41 = 308.71, I don't know where the 7 was added though
Vitek1552 [10]
I m getting 308.11, there is an additional 0.60 that is added, maybe your source is wrong, or there is a copying error.
8 0
3 years ago
A. -7/8x-3/2<br> B.y=7/8x+3/2<br> C.y=-8/7x+3/2<br> D.y=-3/2x+7/8<br> Hi I need help
uranmaximum [27]

Answer:

Hi! your answer is A. -7/8x-3/2

Step-by-step explanation:

to find the slope of the line (-7/8) you count the x and y difference between the 2 points. It goes down 7 and right 8 units.

to find the y-intercept you just take it from the graph. The line crosses the y-axis at y=-3/2.

8 0
3 years ago
X-1 / x-1 = 1<br> What is x?
lions [1.4K]

Answer:

\large\boxed{x\in\mathbb{R}-\{1\}}\to\text{any real number except 1}

Step-by-step explanation:

\dfrac{x-1}{x-1}=1\\\\\text{Domain:}\ x-1\neq0\qquad\text{add 1 to both sides}\\\\x\neq1\\\\\text{We know:}\ \dfrac{a}{a}=1\ \text{for any real number except 0}.\\\\\text{Therefore}\ x\ \text{is any real number except 1}.

4 0
3 years ago
The values of a,b, and c in scientific notation are 3.47 x 10^-6, 4.61 x 10^-7, and 5.52 x 10^-7, respectively. Complete the fol
Mars2501 [29]

Answer:

a)  1.59967 * 10 ^-12

b)    7.52711497

c)  1.590778098 * 10^-1

Step-by-step explanation:

a= 3.47 x 10^-6,

b=4.61 x 10^-7,

c=5.52 x 10^-7

a)  a*b =  3.47 x 10^-6* 4.61 x 10^-7

We multiply the numbers out front and add the exponents

        (3.47*4.61) * 10^(-6+-7)

        15.9967 * 10^-13

But this is not correct scientific notation, we need 1 number in front of the decimal.  Move the decimal 1 place to the left and add 1 to the exponent

1.59967 * 10^(-13+1)

1.59967 * 10 ^-12

b)   a/b = 3.47 x 10^-6/ 4.61 x 10^-7

We divide the numbers out front and subtract the exponents

        (3.47/4.61) * 10^(-6- -7)

         (3.47/4.61) * 10^(-6+7)

         .752711497* 10^1

But this is not correct scientific notation, we need 1 number in front of the decimal.  Move the decimal 1 place to the right and subtract 1 from the exponent

7.52711497* 10^1-1

7.52711497

c)  c/a = 5.52 x 10^-7/3.47 x 10^-6

We divide the numbers out front and subtract the exponents

        (5.52/3.47) * 10^(-7- -6)

        (5.52/3.47) * 10^(-7+6)

          1.590778098 * 10^-1

3 0
3 years ago
What is the range for this data set?
Advocard [28]

Answer:

range = 9

Step-by-step explanation:

The range is the difference between the largest and smallest values

largest value = 12

smallest value = 3

range = 12 - 3 = 9

7 0
3 years ago
Read 2 more answers
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