The area of the room is 147.5 square feet so Michelle's reasoning was incorrect.
Step-by-step explanation:
Step 1:
To calculate the area of the given room, we divide the unknown shape into known shapes.
The room's shape is made of 2 rectangles.
The area of a rectangle is the product of its length and its width.
One rectangle has a length of 10 feet and a width of 12 1/2 feet.
The other rectangle has a length of 15 - 10 = 5 feet and a width of 4 1/2 feet.
Step 2:
The area of the first rectangle = (10)(12 1/2) = (10)(12.5) = 125 square feet.
The area of the second rectangle (10)(4 1/2) = (5)(4.5) = 22.5 square feet.
The total area of the room = 125 + 22.5 = 147.5 square feet.
Answer:
-5/8a - 2.8b
Step-by-step explanation:
-3/8a + 3.2b + (-6b) - 1/4a
=> -3/8a + 3.2b + (-6b) - 2/8a
=> -5/8a + 3.2b - 6b
=> -5/8a - 2.8b
Therefore, -5/8a - 2.8b is the solution to your problem.
Hoped this helped.
Answer:
Step-by-step explanation:
The two photos are attached for the missing information in your question.
Statement: m∠7 and m∠8 are supplementary.
Reason: Linear Pair Theorem
13/20
13x5= 65
20x5= 100
65/100 = 0.65
0.65%
Answer:
C
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Here m = - 3, so
y = - 3x + c ← is the partial equation
T find c substitute (2, - 1) into the partial equation
- 1 = - 6 + c ⇒ c = - 1 + 6 = 5
y = - 3x + 5 ← in slope- intercept form
Add 3x to both sides
3x + y = 5 ← in standard form → C
