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umka2103 [35]
3 years ago
8

If a – 2 = -12, then a = ______.

Mathematics
2 answers:
nata0808 [166]3 years ago
6 0
A=-10 all you do to find a is simply add 2 to both sides of the equal sign
blondinia [14]3 years ago
4 0

Answer:

a= -10

Step-by-step explanation:

To do this you would need to isolate a, or make a stand alone on its side of the equation

a-2=-12    Original equation

a-2+2 = -12+2     Isolating the variable(adding the 2 will cancel the -2 on the left side of the equation)

a= -12+2             Simplification

a= -10                 The answer!!!

I hope this helps!!!

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Can someone plz help me on this plz I beg u plz
JulsSmile [24]
<h3>Answer:  25w+200 > 750</h3>

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

Explanation:

He starts off with 200 cards. Then he adds on 25w more cards for each week (w). Overall, he'll have 200+25w cards

We can think of it like this:

  • After 1 week, he adds on 25*1 = 25 cards
  • After 2 weeks, he adds on 25*2 = 50 cards total
  • After 3 weeks, he adds on 25*3 = 75 cards total
  • After 4 weeks, he adds on 25*4 = 100 cards total, and so on.
  • After w weeks, he adds on 25w cards total

So that's another way to see where the 25w comes from.

The expression 200+25w is the same as 25w+200. This is because we can add two numbers in any order.

------------

Since he wants to know when he'll have more than 750 cards, this means we set 25w+200 greater than 750.

That's how we get to the answer of 25w+200 > 750

Notice how there isn't a line under the inequality sign. We aren't using the "greater than or equal to" symbol here. We want to know when the cards gets over 750, but we don't want to know when it's equal to 750.

5 0
3 years ago
Solve the Quadratic Equation . Show all of your work for full credit. 4x^2− 2x − 5= 0
max2010maxim [7]
Hope this helps! Don’t mind the part I crossed off.

8 0
3 years ago
Read 2 more answers
Find the mean of this set of numbers.<br><br> 7, –9, 6, –10, –13, –5
ivann1987 [24]
7+(-9)+6+(-10)+(-13)+(-5)=
7-9+6-10-13-5=
-24

mean is the sum of all the numbers divided by the total number of numbers within the data.

-24÷6=-4

The mean is -4.
5 0
3 years ago
H=k/j, for k hellllllllllllllppppppppppp
ss7ja [257]
I'm only answering because the app told me i need to help someone before I can ask another question, but I can't help because I don't know what to help you with so
8 0
3 years ago
Read 2 more answers
What is range of 34,56,13,98, and 75?<br><br> A) 23<br><br> B) 85 <br><br> C) 56 <br><br> D) 55.2
GenaCL600 [577]

Answer: B; 85


Step-by-step explanation

hope it help

6 0
2 years ago
Read 2 more answers
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