Answer:
Solution given:
9x-4=8+7x[Vertically opposite angle]
9x-7x=8+4
2x=12
x=12/2
x=6
:.<u>8</u><u>+</u><u>7</u><u>x</u><u>=</u><u>8</u><u>+</u><u>7</u><u>×</u><u>6</u><u>=</u><u>5</u><u>0</u><u>°</u>
Answer:
The number is 3.5.
Step-by-step explanation:
1) Form an equation.
8x-5= 23
2) Add 5 to both sides.
8x= 28
3) Divide both sides by 8.
X= 3.5
Answer:
Bottom 20% percentile
Step-by-step explanation:
4/20= .2
Answer:
A.0.6
0.6*5yrs=3feet a year
Step-by-step explanation:
Answer:
The dimensions of the work area are 16 ft by 36 ft
Step-by-step explanation:
Let
x ----> the length of the work area in feet
y-----> the width of the work area in feet
we know that
The perimeter of the work area is equal to

simplify
----> equation A
The area of the work area is equal to
---> equation B
substitute equation A in equation B
solve the quadratic equation by graphing
using a graphing tool
The solutions are
x=16 ft, y=36 ft
or
x=36 ft, y=16 ft
see the attached figure
therefore
The dimensions of the work area are 16 ft by 36 ft