<span>Let x = the width
:
It says,"The length of a rectangle is 4 less than 3 times the width." write that as:
L = 3x - 4
:
If the perimeter is 40, find the dimensions of the rectangle.
:
We know: 2L + 2W = 40
:
Substitute (3x-4) for L and x for W
2(3x-4) + 2x = 40
:
6x - 8 + 2x = 40; Multiplied what's inside the brackets
:
6x + 2x = 40 + 8; do some basic algebra to find x; (added 8 to both sides)
:
8x = 48
:
x = 48/8
:
x = 6 which is the width
:
It said that L = 3x - 4, therefore:
L = 3(6) - 4
L = 18 - 4
L = 14; is the length
:
Check our solutions in the perimeter:
2(14) + 2(6) =
28 + 12 = 40</span>
Answer:
your going to have to be a little more specific than that please ;-; but if you want i can answer it this way
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Answer:
the volume of the cylinder is 904.32 m³
Step-by-step explanation:
Volume of a cylinder is
π = 3.14
r = 6 units
h - 8 units
Substitute for the values in the volume equation
V = 904.32
Answer: X = 34
Step-by-step explanation:
Let's solve your equation step-by-step.
x+30=2x−4
Step 1: Subtract 2x from both sides.
x+30−2x=2x−4−2x
−x+30=−4
Step 2: Subtract 30 from both sides.
−x+30−30=−4−30
−x=−34
Step 3: Divide both sides by -1.
−x
−1
=
−34
−1
-5.9, -5 7/8, 5.78 because negative is less than zero and 7/8= .850 :)