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masya89 [10]
3 years ago
7

8. Molly and her four friends are attending the

Mathematics
1 answer:
maksim [4K]3 years ago
4 0

They each pay $11.20

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5x – (13 – x) >_9x – 7
ad-work [718]

Answer:

x<_2

Step-by-step explanation:

first off solve this like a regular equation the >_ dosent matter till later

so basically first multiply - by 13 and -x so you get -13 and x (multiplying two negatives = a positive)

so its 5x-13+x>_9x-7

add 5x and x to get 6x-13 on one side

then you get 6x-13>_9x-7 then subtract -9x from both sides

so its now -3x-13>_-7 add 13 so you get -3x>_6

then divide both sides by -3 (when you divide an equation with a >< or <_ >_ by a negative number that sign switches) so it will now be x<_2

that your final answer hope this helps :)

6 0
3 years ago
Adrian's CD player can hold six disks at a time and shuffles all of the albums and their songs. If he has thirteen CD's, how man
Crank
Adrian can put a total of 1716 combinations in the player. 

The formula to be used is as follows:

total combinations = n!/[r! *(n-r)!]
n = number of disks available  = 13
r = number of disks that be held = 6

= 13! = (13• 12•11•10•9•8•7•6•5•4•3•2•1)/(6! <span>• 7!)
</span>=1716

Thank you for posting your question. Feel free to ask me more.



6 0
3 years ago
This is for middle school 9th grade please help me :)
saw5 [17]

Answer:

1 because it goes up 3 over 3      3/3=1

Step-by-step explanation:

4 0
3 years ago
X + 8 &lt; 10<br> Please help
Cerrena [4.2K]

Answer:

if I'm solving for x, then its 2

(I think)

6 0
2 years ago
What is the unit rate of 6 eggs in 7 days
alexgriva [62]
6 eggs= 7 days

1 egg = x days


7 days _
----------- = 1. 6 days per 1 egg
6 eggs
7 0
3 years ago
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