Answer: 2.750
Step-by-step explanation: make 12 7/8 into a decimal then subtract 0.75 to 12.875 than you have 12.125 now you subtract 9. 375 to 12.125 and you have your answer I hope this is right
Answer:
12.33
Step-by-step explanation:
6x - 2 + 9x - 3 = 180° (linear pair)
6x + 9x - 2 - 3 = 180°
15x - 5 = 180°
15x = 180 + 5
15x = 185
x = 185/15
x = 12.33
hope this helps you!
Answer:
x = 7
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
<u>Geometry</u>
- All angles in a triangle add up to 180°
Step-by-step explanation:
<u>Step 1: Set up Equation</u>
<em>Every angle must add up to 180°.</em>
(6x - 6)° + 54° + 90° = 180°
<u>Step 2: Solve for </u><em><u>x</u></em>
- Combine like terms: 6x + 138 = 180
- Isolate <em>x</em> term: 6x = 42
- Isolate <em>x</em>: x = 7
Answer:
Step-by-step explanation:
We are given that a container with square bottom.
Let side of square=x
Height of container=h
Volume of container=
Cost of 1 square meter of material for the bottom=$10
Cost of 1 square meter of material for side=$8
We have to find the dimension of least expensive container.
Volume of container=
Surface area of container=
Cost=
Differentiate w.r.t x
Because side of container is always positive.
Again differentiate w.r.t x
Substitute x=2
Hence, the cost is minimum at x=2
Substitute the value of x
m
Hence, the dimensions of the least expensive container are