MATHEMATICS MIDDLE SCHOOL

Samuel is looking at the floor plan of his house to determine how much carpet he needs to buy for his basement. Based on the floor plan of his basement, how can he decompose the measurements into expressions find the area? A) First, find two areas using (4m + 10m = 14m2) and (8m + 3m = 11m2). Next, add (14m2 + 11m2 = 25m2). B) First, find two areas using (4m x 10m = 40m2) and (8m x 3m = 24m2). Next, add (40m2 + 24m2 = 64m2). C) First, find two areas using (4m x 10m = 40m2) and (8m x 3m = 24m2). Next, subtract (40m2 - 24m2 = 16m2). D) First, add all the labeled sides using (4m + 10m + 12m + 3m = 29m2). Next, add the remaining sides (8m + 7m = 15m2).

Answers

Answer 1

Answer:

Answer:

B) First, find two areas using (4m x 10m = 40m2) and (8m x 3m = 24m2). Next, add (40m2 + 24m2 = 64m2).

Step-by-step explanation:

Samuel should is looking to find the area of his basement in order to cover it with carpet.

An area is calculated by multiplying two dimensions (so answers A and D are not it).

Best solution is to divide the area into two large rectangles then ADD them together to get the total area.

The only scenario where he could have subtracted something based on his plan is if he would have multiplied the 10m by the 12m then subtracted the area that is not part of his basement (7mx8m). He would have achieved the same result of course, but by going a different way.

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What measurements do you need to know to find the volume of a cylinder? a cone? a sphere

Answers

For the volume of a cylinder, it is volume=base times height.
For the volume of a cone, it is volume=1/3 times base times height.
For the volume of a sphere, it is volume=4/3 times pi times r^{3}

For a cylinder you need radius and height
Cone you need radius and height
Sphere you need radius.

For a cylinder you need radius and height

cone you need radius and height

sphere you need radius.

The price of an item yesterday was $120.Today the price fell to $78 find the percentage decrease

Answers

The answer is $120.00-$78.00=$42.00

Final answer:

To calculate the percentage decrease, subtract the final price from the initial price, divide this difference by the initial price, and multiply by 100.

Explanation:

The percentage decrease in price can be calculated by finding the difference between the initial price and the final price, dividing it by the initial price, and then multiplying by 100. In this case, the initial price was $120 and the final price was $78. So, the difference is $120 - $78 = $42.

Next, divide the difference by the initial price: $42 / $120 = 0.35.

Multiply the result by 100 to find the percentage decrease: 0.35 * 100 = 35%.

Learn more about Calculating Percentage Decrease here:

brainly.com/question/32873323

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What sentence about markdowns and markups is true? A. Markdowns and markups have no limit.
B. A markdown has no limit, but a markup is limited to 100% or less.
C. A markup has no limit, but a markdown is limited to 100% or less.
D. Markdowns and markups are limited to 100% or less.