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dybincka [34]
3 years ago
5

For each formula,rearrange so a is by itself:

Mathematics
1 answer:
vichka [17]3 years ago
6 0

Step-by-step explanation:

a) 6-9b=3a

First:Subtract

3b=3a

Second: Devide

3b/3a

=(3÷3)(b÷a)

=1b/a

= b/a

B) 6b+2a=3a

First:Transpose (Group the like terms. signs will change.)

-3a+2a=-6b

=-1a=-6b

Second:Divide

=-1a/-6b:(-1÷-6)(a÷b)

=1a/6b

=a/6b

C)a/3=b+2

First: Transpose

a=3+2+b

=a/6+b

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3(x-1) - 8 = 4(1+x) +5. Too hard, i keep getting confused
svet-max [94.6K]

3(x-1)-8=4(1+x)+5  

One solution was found :

                  x = -20

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    3*(x-1)-8-(4*(1+x)+5)=0  

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 ((3•(x-1))-8)-(4•(x+1)+5)  = 0  

Step  2  :

Equation at the end of step  2  :

 (3 • (x - 1) -  8) -  (4x + 9)  = 0  

Step  3  :

Step  4  :

Pulling out like terms :

4.1     Pull out like factors :

  -x - 20  =   -1 • (x + 20)  

Equation at the end of step  4  :

 -x - 20  = 0  

Step  5  :

Solving a Single Variable Equation :

5.1      Solve  :    -x-20 = 0  

Add  20  to both sides of the equation :  

                     -x = 20

Multiply both sides of the equation by (-1) :  x = -20

One solution was found :

                  x = -20

hope this is wht u wanted

4 0
3 years ago
PLEASE HELP!!!!!!!!!!!
garik1379 [7]

First convert the hours to minutes

1hr = 60mins

15hrs = 15 \times 60mins

= 900minutes

now change the 900mins to seconds

as

1mins = 60sec

900mins = 900 \times 60sec

4 0
3 years ago
the market price of refrigerator is 1,660 John has a coupon for 15% off find the selling price of refrigerator with the coupon
Musya8 [376]
First you have to find how much 15% of 1600 is;
1600x0.15=240
Then you have to subtract this from the total :)
1600-240=1360
So the answer is $1,369 
Hope it helped :)
3 0
4 years ago
Jarry has a jar with 273 marbles in it. The jar can hold 1,000 marbles in all. Which equation can be use to find m, the number o
AnnZ [28]

Answer:

1000-273=M

Step-by-step explanation:

Jarry has 273 and needs 1000 so take the number he needs by the marbles he has to find the marbles he needs to fill the jar. Hope this helped

4 0
3 years ago
The "Verifiable" characteristic of scientific research deals with: A: The results' replication B: None of the given options C: T
Marina86 [1]

Answer:

a

Step-by-step explanation:

3 0
3 years ago
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