Answer:
s = -6.7
Step-by-step explanation:
- 16.68 + 1.8s + 2.2 = 3s - 6.4
- 16.68 + 2.2 + 1.8s = 3s - 6.4
- 14.48 + 1.8s = 3s - 6.4
Collect like terms
Note: crossing over equals to, the sign will change
Hint: either from
- to +
Or
+ to -
-14.48 + 6.4 = 3s - 1.8s
-8.08 = 3s - 1.8s
-8.08 = 1.2s
Divide both sides by 1.2, to get the value of s
-8.08/1.2 = 1.2s/1.2
-6.7 = s
s = -6.7
16 tiles will fit on a back splash that is 8ft long
Answer:
y = 2x-2
Step-by-step explanation:
First find the slope of the line
x+2y=6
2y = -x+6
y = -1/2x +3
This is in slope intercept form ( y = mx+b) so -1/2 is the slope
We want a line that is perpendicular so take the negative reciprocal of the slope
- ( 1/ (-1/2)) = 2
The slope of the perpendicular line is 2
y = 2x+b
Substitute the point into the equation
8 = 2(5) +b
8 = 10+b
-2 =b
The equation of the line perpendicular is
y = 2x-2
24+357/1000 = 24.357. Just remember decimals are in tenths, hundredths and in this case thousandths
