I need the answer and the work!
you have to find n.

Answers

Answer 1

Answer:
Tell you what I'll do: I'll show you the work, for two of them.
Then, knowing how to do it, you'll find the answers.
Deal ?

#1). n + (-13) = -12

Remove the parentheses
on the left side: n - 13 = -12

Add 13 to each side: n = 1

================================

#3). -15 + n = 3

Add 15 to each side: n = 18

OK. Look those over, understand how they're done, then TAKE IT !

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Solve:

3/5 − 6/11

A:3/55

B:3/6

C:3/11

Answers

The answer is: [A]: 3/55 .
__________________________________
Explanation:
__________________________________
(3/5) - (6/11) = [(3*11) / (5*11) ] - [(6*5) / (11*5)] = (33/55) - (30/55) = 3/ 55.
____________________________________________________

Add. 6 1/3 + 4 ¾ + 3 7/12 =

Answers

One year later,

You have not understood my wrong answer!

$6 (1)/(3) +4 (3)/(4)+3 (7)/(12) \n =(6+ (1)/(3) )+(4+ (3)/(4))+(3+ (7)/(12) )\n\n =(6+4+3)+( (1)/(3) + (3)/(4) + (7)/(12) )\n\n =13+ (4+9+7)/(12) =13 (20)/(12) =13+1+ (8)/(12) \n\n =14+ (2)/(3) =14 (2)/(3)$

Is it more clear?

The diameter of a bacteria colony that doubles every hour is represented by the graph below. What is the diameter of the bacteria after 9 hours? (0,1) (1,2) (2,4) (3,8)Answers:
128
256
512
1024

Answers

As the colony doubles every hour, the population $p$ is modeled by:

$p = 2^t$

Where $t$ is the time in hours.

We can see this because:

$2^0 = 1 \n 2^1 = 2 \n 2^2 = 4$

Notice that the x coordinate of the graph corresponds to the time, and the y coordinate corresponds to the population.

Thus at $t=9$

$p=2^9 \n \n p = \boxed{512}$

The sum of two numbers is 95, and their difference is 61. What are the two numbers?

Answers

Let's call:

$first\#=x$

$second\#=y$

then

when we have a SUM, we have PLUS and when we have a DIFFERENCE, we have MINUS... Let's go then...

$\begin{Bmatrix}x+y&=&95\nx-y&=&61\end{matrix}$

now we can sum all the rows then we got it... (This is the other way to solved this question)

$x+y+(x-y)=95+61$

$x+y+x-y=156$

$2x=156$

$\boxed{x=78}$

now we can replace this value at first or at second row, you just need to pick up one...

I'll choose the second one

$x-y=61$

$78-y=61$

$y=78-61$

$\boxed{y=17}$

$\boxed{\boxed{\begin{Bmatrix}x&=&78\ny&=&17\end{matrix}}}$

$\left \{ {x+y=95} \atop {x-y=61}} \right. \n \n2x=156\nx= (156)/(2) \n \nx=78\n \ny=95-y\ny=95-78\ny=17$

First number 78, and the second is 17 .

Identify the solution set of the inequality, using the given replacement set.x < –4; {–10, –4.3, –4, –3.9, 2, 6.5}

A. {–10, –4.3, –4}
B. {–4, –3.9, 2}
C.{–10, –4.3}
D. {–3.9, 2}

Answers

Thank you for posting your question here at brainly. Feel free to ask more questions.

The best and most correct answer among the choices provided by the question is C.{–10, –4.3} .

Hope my answer would be a great help for you.

Hello there.

Identify the solution set of the inequality, using the given replacement set.

x < –4; {–10, –4.3, –4, –3.9, 2, 6.5}

C.{–10, –4.3}

How do I solve this?