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grin007 [14]
3 years ago
12

Lesson 28 multiply to find area answer key

Mathematics
1 answer:
ra1l [238]3 years ago
5 0

Question

A rectangle has length of 8 meters and width of 7m, what is the area?

Answer:

56 m²

Step-by-step explanation:

The area of a rectangle is given as a product of its length and width hence expressed as

A=lw

Where l represent length, w is width and A is area.

Substituting 8 m for l and 7 m for w then

A=8m*7m=56 m²

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A file that is 278 megabytes is being downloaded. If the download is 19.9% complete, how many megabytes have been downloaded? Ro
noname [10]

Answer:

55.3

Step-by-step explanation:

19.9% of 278 = 55.322

55.322 rounded to the nearest tenth = 55.3

8 0
4 years ago
A semicircle has the radius of 2 4/5. What is its area? leave your answers in term of π
Ratling [72]

Answer:

11\dfrac{13}{25}\pi

Step-by-step explanation:

r = Radius of semicircle = 2\dfrac{4}{5}=\dfrac{24}{5}\ \text{units}

Area of semicircle is given by

A=\dfrac{\pi r^2}{2}\\\Rightarrow A=\dfrac{\pi \left(\dfrac{24}{5}\right)^2}{2}\\\Rightarrow A=\dfrac{288}{25}\pi=11\dfrac{13}{25}\pi\ \text{sq. units}

The area of the semicircle is 11\dfrac{13}{25}\pi\ \text{sq. units}.

4 0
3 years ago
The table shows jills math quiz scores. what is the minimum score she needs on her next quiz to have a mean of at least 92
Feliz [49]

Answer:

90

Step-by-step explanation:

The mean is the average:

(92 + 96 + 94 + 88 + x) / 5 ≥ 92

370 + x ≥ 460

x ≥ 90

3 0
3 years ago
Evaluate 5.5r8.35s when r12 and s4.
Over [174]

Answer:

32.6

Step-by-step explanation:

when you plug in for s and r you will get 66-33.4 since 5.5 multiped by 12 is 66 and 8.35 multiplied by 4 is 33.4 .

then you subtract them and that's how you'll get your answer

3 0
3 years ago
A pattern of rectangles is formed by decreasing the length and increasing the width, each by the same amount. The relationship b
Arte-miy333 [17]
Although the graph is not given in the option, so I would consider it from a different graph with the same question. The graph that represents the area of each rectangle in terms of the change in the length and width is the one with coordinate points located on the grid. The coordinate points on the form of (x,y) are represented as: 

1. (0,40)
2. (1,45)
3. (2,47) 
4. (8,25)

Hence,The graph with these coordinate points will be representing the situation.

4 0
3 years ago
Read 2 more answers
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