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9966 [12]
3 years ago
8

What is the LCM and GCF of 13 and 15?!

Mathematics
2 answers:
AlladinOne [14]3 years ago
3 0
LCM\\\\
13:13\\1:1\\\\
15:3\\
5:5\\1:1\\\\LCM(13,15)=1*3*5*13=195\\\\
GCF:\\\\GCF(13,15)=1.
Degger [83]3 years ago
3 0
13 is prime so the GCF is 1.
The LCM: 13*15/1=195
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Factor 2x^2 + 14x + 12
8_murik_8 [283]
2(x+6)(x+1)

2x^2 + 14x + 12
2(x^2 + 7x + 6)
2(x+6)(x+1)

Basically thats it
8 0
3 years ago
How to solve 3(6x+2x)=8(5x+6)-4x
djyliett [7]

First, you are going to distribute the 3 into the (6x+2x) and the 8 into the (5x+6). After that, the parenthesis should be gone. Then, move all the x values to one side, and the constants to the other. Then, solve as you normally would.

6 0
3 years ago
If 3t-7=5t, then 6t =
Natalija [7]
The answer is:  " -21 " .
__________________________________________
We are asked to solve for: "6t" ; which is: "6 * t" .
__________________________________________
Given:  3t − 7 = 5t ;  Solve for "t" ; then solve for "6t" ;

     3t − 7 = 5t ;   Subtract "3t" from each side of the equation;
____________________________________________
    3t − 7 − 3t  =  5t − 3t ;

to get:  -7  = 2t  ;

Divide EACH side of the equation by "2" ; to isolate "t" on one side of the equation; and to solve for "t" ;

-7/2 = 2t / 2 ;

-3.5 = t  ;  ↔  t = - 3.5 ;
____________________________________________
Now, solve for "6t" ;

  6 t = 6*(-3.5) = - 21 .   The answer is:  " -21 " .
____________________________________________
6 0
3 years ago
What is 8/9 of 3/8?<br> A. 11/72<br> B. 2/7<br> C. 1/3<br> D. 3/7
Sedaia [141]
If you are talking about Multiplying them together then it’s 1/3 because you go 8x3
And 9x8 which makes 24/72 simply and then you get 1/3
3 0
2 years ago
Read 2 more answers
Please help me!<br> simplify. 5-[-(-20] <br> a. -3<br> b.3<br> c.-7<br> d.7
frosja888 [35]

Im sorry i dont know

8 0
3 years ago
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