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Agata [3.3K]
3 years ago
6

Evaluate the expression: 2a + 4b – 3c for a = 9, b = 5, c = 12

Mathematics
1 answer:
vova2212 [387]3 years ago
5 0
So you would plug them in:
2(9)+4(5)-3(12)
18+20-36
38-36
2 would be the answer
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HELPPP.
xz_007 [3.2K]

Answer:

11

Step-by-step explanation:

4+4+.1*(15+15)=11

8 0
3 years ago
Simplify this Algebraic equation with steps<br> -6q +7 -2 +4q
garri49 [273]

Answer:

-2q+5

Step-by-step explanation:

-6q +7 -2 +4q

Combine like terms

-6q+4q+7-2

-2q+5

6 0
3 years ago
Read 2 more answers
If you divide 87 by X and you get 16 what is X?
Anon25 [30]
X would be 1392. All you do is the opposite: multiplication! 87*16=1392.1392/87=16. Hope this helps! ^_^
6 0
4 years ago
72-(63-8) and (72-63)-8
tatyana61 [14]
The Priority is always to parenthesis. It means that in both equations, begin by operating what's inside the parenthesis. Then Subtract what's left.

For the first one you get:
72 - (63-8)
72 - 55
17

For the second one you get:
(72-63)-8
9-8
1

Which mean that The 2 equations are not equal, because 17 \ \textgreater \  1
Hope this Helps! :D
3 0
3 years ago
Read 2 more answers
Which of the following is the complete factorization of 25a 2-100
Westkost [7]

Answer:

25(a-2)(a+2)

Step-by-step explanation:

25a^2 -100  

We can factor out 25

25(a^2 -4)

a^2 -4  is the difference of squares a^2-b^2= (a-b)(a+b)

where a =a and b=2

a^2 -4 = (a-2)(a+2)

25a^2 -100 = 25(a-2)(a+2)


4 0
3 years ago
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