1. 11x+9=-7
-9 -9
11x=-16
/11 /11
x= -16/11
2. 2x-8-6x=90
2x-6x=-4x
-4x-8=90
+8 +8
-4x=98
/-4 /-4
x=-24.5
3. 5(3x-4)=x+6+12x
15x-20=13x+6
-13x. -13x
2x-20=6
+20. +20
2x=26
/2. /2
x=13
Answer:
1 inch
Step-by-step explanation:
If we call the thickness of the frame x, then the dimensions of the glass are:
w = 8 − 2x
h = 10 − 2x
The area of the glass is width times height:
48 = (8 − 2x) (10 − 2x)
Distribute and simplify:
48 = 80 − 16x − 20x + 4x²
0 = 4x² − 36x + 32
0 = x² − 9x + 8
Factor and solve:
0 = (x − 1) (x − 8)
x = 1 or x = 8
x can't be more than 4 (half the width of the frame), so x = 1 inch.
Palarell lines has equal slop. so the slope of a line parallel to y = -x + 7 is equal to the slope of y = -x + 7 = -1.
Answer:
1. 14 - 4= 10 2. 8- (-2) = 6 3. 4 - 16 = -12 4. -6 - 3 = -9 5. 13 + (-8) = 5 6. 8 - (-6) = 14
Step-by-step explanation:
The equation shown presented how to convert degrees Celcius to degrees Fahrenheit. In order to get and solve for F given the equation, these are the steps.
C = [5 * (F-32)] / 9
9C = 5 * (F - 32)
9C = 5F - 160
9C + 160 = 5F
5F = 9C + 160
F = (9C / 5) + (160 / 5)
F = [ (9/5) * C ] + 32
So, the correct answer for this question is F = [ (9/5) * C ] + 32