Question

Please answer as many as you can

Answer 1

Answer:

1.  280.40

350.50*.20=70.10

350.50-70.10=280.40

2.x=−1

-3*3=--9+-3x

-3x/3= -1  x= -1

3.=15(3t−1)

Because 45t/15= 3 then 15/15=1

4.  =−0.8m+10

Let's simplify step-by-step.

3.5m+2−(4.3m−8)

Distribute the Negative Sign:

=3.5m+2+−1(4.3m−8)

=3.5m+2+−1(4.3m)+(−1)(−8)

=3.5m+2+−4.3m+8

Combine Like Terms:

=3.5m+2+−4.3m+8

=(3.5m+−4.3m)+(2+8)

=−0.8m+10

Answer:

=−0.8m+10

5.  Perimeter is adding all side sooo.22x -2

6x -2 + 6x-2=  12x - 4

5x +1 +5x+1= 10x+2

12x -4 +10 + 2= 22x -2

Step-by-step explanation:

Hope this helps you.^_^

Answer 2

Answer:

2. is x = -3

Step-by-step explanation:

-3( x - 3) = 12

multiply the things in the () by -3

-3x+9=12

subtract 9 from both sides

-3x+9-9=12-9

-3x=3

divide both sides of the equation by -3

x = -3