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3 years ago

How much will it cost molly is she used her cell phone for 390 minutes in one month?

1 answer:

8 0

Depending on the Phone plan that the service provider (T-mobile, AT&T, Ect...) offers. State enough information next time. Hope this helps.

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Solve the system of equations. - 9x + 4y = 6 9x + 5y = -33

liubo4ka [24]

Let us solve this system of equations by using the elimination method. Adding the 2 equations, we get

9x + 5y - 9x + 4y = -33 + 6

9y = -27

y = -3

Substituting this value of y in the first equation, we get

-9x + 4(-3) = 6

-9x - 12 = 6

9x + 12 = -6

9x = -18

x = -2

Therefore, x = -2, and y = -3. Hope this helps! If you have any questions, feel free to ask.

7 0

3 years ago

HELP PLEASE!!!!!!!!!!!

sashaice [31]

The simplified expression should be 3/7

3 0

3 years ago

I need help I can’t quite figure this question

Nana76 [90]

Try asking someone for help!!!

7 0

2 years ago

Find the distance between FD F=(4,6) D=(0,-1)

Kaylis [27]

Answer:

Final answer -

$d(FD) = \sqrt{65 } \: units$

hope helpful :D

5 0

2 years ago

A population of mold decays at a rate of 30 mold spores per day if the initial population of mold spores is 1560 spores how many

KonstantinChe [14]

Answer:

Step-by-step explanation:

In the first day the population will decrease to 1530, then 1500 the day 2, 1470 day 3, and so on ...

For decrease and get less than 1000 the mold population needs to be reduced in at least 560. The questions turns to be, how many days will it take to reduce the population in 560 spores?

If we divide 560 between 30 it will gives us the answer:

560/30 = 18.667

So, it is need to wait 19 days. In 18 days only 540 spores are reduced. In 19 days 570. We will say 19 days as we are looking (I guess) for an integer number.

4 0

3 years ago