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steposvetlana [31]

3 years ago

15

An office supply store sells pencils individually or by the case. Pencils purchased individually cost $0.97 each. One case of fo

rty pencils costs $37.20.
If purchased in a case, the average cost per pencil is

1 answer:

AnnyKZ [126]3 years ago

3 0

Answer:

$00.90

Step-by-step explanation:

If you dive the total cost of the case, $37.20, by the total number of pencils, 40, that's the answer you get.

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One number is 3 times a first number. A third number is 100 more than the first number. If the sum of the three numbers is 510,

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Answer:

82

Step-by-step explanation:

solve a + (3a) + (a + 100)=510

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What is the value of 764?

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764

Step-by-step explanation:

well, it is

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Number of Certified Organic Farms in the United States, 2001–2008

Vinil7 [7]

Answer:

ŷ = 739.49X + 4876.43

y = 6755.98 - 388.24x + 125.30x²

y = 5428.98(1.09)^x

B.)

Linear:

ŷ = 739.49(9) + 4876.43

y = 11531.8

Year 2010 ; x = 10

y = 739.49(10) + 4876.43

y = 12271.3

Year 2011 ; x = 11

y = 739.49(11) + 4876.43

y = 13010.8

Quadratic :

Year 2009 ; x = 9

y = 6755.98 - 388.24(9) + 125.30(9^2)

y = 13411.1

Year 2010 ; x = 10

y = 6755.98 - 388.24(10) + 125.30(10^2)

y = 15403.6

Year 2011 ; x = 11

y = 6755.98 - 388.24(11) + 125.30(11^2)

y = 17646.6

Exponential:

Year 2009 ; x = 9

y = 5428.98(1.09)^9

y = 11791.2

Year 2010 ; x = 10

y = 5428.98(1.09)^10

y = 12852.4

Year 2011 ; x = 11

y = 5428.98(1.09)^11

y = 14009.1

Step-by-step explanation:

X :

1

2

3

4

5

6

7

8

Y:

6231

6574

7237

7211

7701

8581

10302

11796

Using the online linear regression calculator :

The linear trend :

ŷ = 739.49X + 4876.43

Where x = year

With 2006 representing 1 ; and so on

Slope = m = 739.49

Intercept (c) = 4876.43

y = predicted variable

The quadratic model:

General form:

y = A + Bx + Cx²

y = 6755.98 - 388.24x + 125.30x²

The exponential model:

y = AB^x

y = 5428.98(1.09)^x

B.) Next three years :

Year 2009 ; x = 9

Year 2010 ; x = 10

Year 2011 ; x = 11

Linear:

ŷ = 739.49(9) + 4876.43

y = 11531.8

Year 2010 ; x = 10

y = 739.49(10) + 4876.43

y = 12271.3

Year 2011 ; x = 11

y = 739.49(11) + 4876.43

y = 13010.8

Quadratic :

Year 2009 ; x = 9

y = 6755.98 - 388.24(9) + 125.30(9^2)

y = 13411.1

Year 2010 ; x = 10

y = 6755.98 - 388.24(10) + 125.30(10^2)

y = 15403.6

Year 2011 ; x = 11

y = 6755.98 - 388.24(11) + 125.30(11^2)

y = 17646.6

Exponential:

Year 2009 ; x = 9

y = 5428.98(1.09)^9

y = 11791.2

Year 2010 ; x = 10

y = 5428.98(1.09)^10

y = 12852.4

Year 2011 ; x = 11

y = 5428.98(1.09)^11

y = 14009.1

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3 years ago

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beks73 [17]

It would be the f(x+3) + 2

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3 years ago

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Steps on how to Solve 7 - 2p > -5

ale4655 [162]

Hello!

<em><u>Answer:</u></em>

<em><u>p<6</u></em>

<em><u>*The answer must have a positive sign and less than symbol sign.</u></em>

Step-by-step explanation:

First, you subtract by 7 from both sides of an equation.

$7-2p-7>-5-7$

Then, simplify.

$-2p>-12$

Next, multiply by -1 from both sides of an equation.

$(-2p)(-1)$

Simplify.

$2p$

You can also divide by 2 from both sides of an equation.

$\frac{2p}{2}$

And finally, simplify and solve. You can also divide by the numbers.

$12/2=6$

Final answer: $p$

Hope this helps!

Thanks!

-Charlie

Have a great day!

:)

:D

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3 years ago

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