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N76 [4]
3 years ago
10

Please help asap!!

Mathematics
1 answer:
ElenaW [278]3 years ago
6 0

Answer:

ok sorry let me try to figure this one out because i dont kow how to do a tree diagram on here

Step-by-step explanation:

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A) Al triple de un número le restamos 9 y se obtiene 30, ¿cuál es ese número?
Greeley [361]
El numero es 13 porque 13x3= 39 y 39-9= 30.
5 0
2 years ago
Solve each equation mentally​
Phoenix [80]
1. x=2
2. X=100
3. X=100
4.-1
5 0
3 years ago
Plsssss helppp im so lost on this
Alik [6]

Answer:

2n-4>1n+3

Step-by-step explanation:

So basically 2 times a number go together because it means its multiplying and the greater sign is > and then 1 is multiplying with n so its 1n and then you just add 1

3 0
2 years ago
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
Select whether each statement shows an example of the
xz_007 [3.2K]
1.no should b 8x + 20
2.no should be 21x + 14
3.yes
3.yes
4 0
2 years ago
Read 2 more answers
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