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Ronch [10]
3 years ago
12

Answer 10 thanks and explain

Mathematics
1 answer:
matrenka [14]3 years ago
5 0
I think the answer is 4. 12× 1/3= 4
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Find the difference (7a-6b+7) - (8a-2)
olga nikolaevna [1]
Hey there!

Let's set up our expression:

(7a-6b+7)-(8a-2)

In order to simplify, we can use that subtraction sign and distribute it, using the distributive property. We have:

7a-6b+7-8a+2

Notice how it's plus two, because a negative times a negative two is a positive two. Now, it's a matter of finding the like terms and adding or subtracting them. These like terms can either have no variable, or have different coefficients but the same variable. That means our like terms are the 7a and -8a, and the 7 and 2. There's no like term for the 6b. That means we have:

(7a-8a) - 6b + (7+2) =

-a - 6b + 9

Hope this helps!
6 0
3 years ago
Determine which system of equation has (-3,19) and (4,-23) as a solution?
grandymaker [24]

Answer:

y=6x+1

Step-by-step explanation:

First you must find the slope of the two points...

\frac{4--3}{-23-19} which then would equal 6

Then you take the slope and put into point-slope form

(y-y1)=m(x-x1)...take one of the points that is given and plug it into this formula.

so I used (-3,19).

(y-19)=6(x--3)

I would then get y-19=6x+18

Add 19 to both sides and you will get y=6x+1


4 0
2 years ago
Buthaina babysat nine times. She earned 15, 20,10,12, 20,16, 80, and 18 dollars for eight of the babysitting jobs. How much did
bija089 [108]

Answer:

216

according to 9*mean(24)

Step-by-step explanation:

7 0
3 years ago
Select the correct answer.
gizmo_the_mogwai [7]

Answer:

Factors are (x-1), (x+1), and (x+2).

Step-by-step explanation:

g(x)=x^{3}+2x^{2} -x-2\\g(x)=(x - 1) (x + 1) (x + 2)

7 0
2 years ago
A 12-foot board is to be cut into 5 pieces. Four of the pieces will be the same length and one piece will be 2 feet longer than
sesenic [268]

Answer:

The answer should be D.

Hope this helped, have a nice day!


4 0
3 years ago
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