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umka2103 [35]
3 years ago
13

="latex-formula">
Mathematics
1 answer:
OlgaM077 [116]3 years ago
5 0
13.8203 i think if i’m wrong i’m so sorry
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5 ( n - 7 ) = 2 ( n + 14 )
wariber [46]

Answer:

n=21

Step-by-step explanation:

We must find n.

Remember PEMDAS. First we must do the Parentheses. Lets do distributive property by multiplying a number that is immediately outside the parentheses with each number inside the parentheses. Lets do this one side at a time.

First lets do 5(n - 7). We get 5n - 35

Now 2(n + 14) is 2n + 28

Okay...... now we have 5n-35=2n+28

Now lets do OPPOSITES!!!! We must do the opposite of each thing to both sides.

The opposite of -35 is positive 35. Lets add 35 to both sides. We get:

5n=2n+63

Now lets do the opposite of 2n which is -2n

3n=63

this is looking quite nice isnt it..........

The opposite of 3 times n is 3 DIVIDED BY n. So lets divide both sides by 3

n=21

amazing.......

8 0
2 years ago
Read 2 more answers
What is the multiplicative inverse of 19/3​
denpristay [2]

Answer:

3/19

Step-by-step explanation: So basically you are asking for the reciprocal and the reciprocal of 19/3 is 3/19. You just basically flip the fraction around.

3 0
3 years ago
Help me!!!??? Now!!!!!!!!!!
Wewaii [24]

Answer:

%75

Step-by-step explanation:

15+14+11+20

15+20=35

14+11=25

total is 60

15 is 25% of 60

so there is %75 chance not to get pink

3 0
2 years ago
Read 2 more answers
If A= 3x^2+5x-6 and B = -2x^2-6x+7 then A-B equals ​
Ber [7]

Answer:

A-B=x^2-x+1

Step-by-step explanation:

A-B=3x^2+5x-6+(-2x^2-6x+7)

 =3x^2+5x-6-2x^2-6x+7

 =x^2-x+1

5 0
2 years ago
Ty had 52 comic books. Now he has 61. Find the percent of change.
mart [117]

Answer:

17.3077%

Step-by-step explanation:

Basically, I used this formula, which you can also use.

You can use the percentage increase formula for any percent increase calculation:

Percentage Increase=Final Value−Starting Value∣∣Starting Value∣∣×100

5 0
3 years ago
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