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3 years ago

6

it cost $6 dollars to send 15 text messages. what was her cost of texting in texts per dollar? express your answer in simplest f

orm.

1 answer:

sveticcg [70]3 years ago

7 0

The cost of each text is $2.50

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Which function is the inverse of f(x) = -5x- 4?

almond37 [142]

Answer:

Inverse of $- 5 x - 4 =$ $\frac{x + 4}{5}$

Step-by-step explanation:

Let y = -5x-4

Swap y and x

x = -5y -4

Solve for y

x+4 = -5y

$y=- \frac{x + 4}{5}$ which is the inverse

3 0

2 years ago

ALGEBRA 1 ASSIGNMENT QUESTIONS

Nezavi [6.7K]

1. 81 1/2 = 163/2
2. 32 1/5 - 64 1/3 =
483/15 - 965/15 =
-482/15 or -32 2/15
3. 16 1/4 = 65/4
4. 49 1/2 + 27 1/3 =
99/2 + 82/3 =
297/6 + 164/6 =
461/6 or 76 5/6

7 0

3 years ago

Will Mark Brainlest Help Please ,,,,

insens350 [35]

$\\ \sf\longmapsto 2x+y=2$

$\\ \sf\longmapsto 2x=2-y$

$\\ \sf\longmapsto x=\dfrac{2-y}{2}\dots(1)$

And

$\\ \sf\longmapsto x+1=y+2$

$\\ \sf\longmapsto x=y+2-1$

$\\ \sf\longmapsto x=y+1$

Put the value

$\\ \sf\longmapsto \dfrac{2-y}{2}=y+1$

$\\ \sf\longmapsto 2-y=2(y+1)$

$\\ \sf\longmapsto 2-y=2y+2$

$\\ \sf\longmapsto 2-2=2y+y$

$\\ \sf\longmapsto 3y=0$

$\\ \sf\longmapsto y=\dfrac{0}{3}$

$\\ \sf\longmapsto y=\infty$

Put in eq(1)

$\\ \sf\longmapsto x=\dfrac{2-y}{2}$

$\\ \sf\longmapsto x=\dfrac{2-\infty}{2}$

$\\ \sf\longmapsto x=\dfrac{2}{2}$

$\\ \sf\longmapsto x=1$

5 0

3 years ago

Read 2 more answers

Sasha’s daily tips this work week were $43, $32, $65, $88, $50, and $72. Is Sasha correct in thinking that the mean accurately r

Gala2k [10]

Answer: $58.33

Step-by-step explanation:

Yes, Sasha is correct. The mean amount she makes is in a day.

8 0

3 years ago

Required<br> What is the solution for the system below:<br> y = x + 1 and y = x + 1

Dmitry_Shevchenko [17]

Answer:

Y TO THE POWER 3 BY DIVIDING Y ON BOTH SIDES YOU WILL GET Y TO THE POWER 3

Step-by-step explanation:

3 0

3 years ago