6/12 is equal to 6 over 12 or .5 or 1/2 when reduced
Answer:
112.5 minutes
Step-by-step explanation:
Working together, Daniel and Donnie can clean the llama pen in 50 minutes. On his own, Daniel can clean the pen in 90 minutes.
Let the number of minutes it takes Donnie to clean his Ilama pen be represented by: x
Hence, we have the expression:
1/90 + 1/x = 1/50
The Lowest Common Denominator for the left hand side = 90x
Hence:
x + 90/90x = 1/50
Cross Multiply
50(x + 90) = 90x
50x + 4500 = 90x
Collect like terms
4500 = 90x - 50x
4500 = 40x
Divide both sides by 40
x = 4500/40
x = 112.5 minutes
Therefore, it takes Donnie 112.5 minutes to clean the llama pen on his own.
The rectangle is 4 x 5. Area of 20.
The three triangles that are cut off from the rectangle to make QRS have areas of 5, 2, and 6. 13 total cut off.
Subtract 13 from 20.
20 - 13 = 7.
The answer is A, 7. Hope this helps!
Answer:
Yes
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Algebra I</u>
- Coordinates (x, y)
- Functions
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify</em>
Point (1, 4)
y = 8x - 4
<u>Step 2: Find</u>
- Substitute in point [Equation]: 4 = 8(1) - 4
- Multiply: 4 = 8 - 4
- Subtract: 4 = 4