Question

Please answer as many as you can

1. Best Buy was having a 20% off sale on all flat-screen TVs. What would the sale price of a $350.50 TV be?
2. Solve -3( x - 3) = 12
3. Factor 45t - 15
4. Simplify ( 3.5m + 2) - ( 4.3m - 8)
5. If the length of a rectangle is 6x - 2 and the width is 5x + 1, simplify an expression that will represent the perimeter.

I understand if you can't do all 5, but it would be greatly appreciated if you did.

Answer 1

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

Explanation:

Hope this helps you.^_^

Answer 2

2. is x = -3

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