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gizmo_the_mogwai [7]
4 years ago
7

Is it possible to bend a 20cm length of wire into a rectangle with area 30cmsquared

Mathematics
1 answer:
charle [14.2K]4 years ago
4 0
No.

to get an area of 30 cm squared the measurements of the rectangle would have to be something like 1x30, 2x15, 3x10, 5x6, etc. to find the perimeter of those rectangles (in other words, the length of the wire needed to complete it) you double the width and add it to double the length. for all the given suggestions, none produce a perimeter shorter than 22cm.

alternatively, you could also say 20cm must be bent so that x does not equal y when 2x+2y=20 and that xy=30. you will find that the math doesnt check out.
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А
Ganezh [65]

Answer:

168 meters squared

Step-by-step explanation:

So we know that Jake walked from b to c and d meaning he didn't go from a to b, but we also know that scarlet walked a to b so to find the length we can subtract scarlet's walk by jake's walk or 38-31 which is 7.

So we know the length of one side is 7 so this means we have side a to b and c to d, but we still need to know b to c. So what we can do is get the length of a b c and d and isolate it so that we only have b to c. To do this we get the length of 7 and double it which is 14 and take it away from the 38m

38-14=24

so now we know that the side is 24 and we can solve for the area

24*7=168

so the answer is 168 meters squared

6 0
3 years ago
22+n=−12<br> pls help me im kinda confused
Ede4ka [16]

Answer:

-34

Step-by-step explanation:

22+n=-12

n=-12-22

n=-34

When you bring a positive constant to the other side of the equal sign it goes negative and vise versa. Then you combine like terms.

Please follow me!!!! Hope this helps!!! Have a wonderful day :)

3 0
3 years ago
A rectangular floor of area 21.6 m2 is going to be tiled. Each tile is rectangular, and has an area of 288 cm2. An exact number
PIT_PIT [208]

Answer:

Area of Floor = 21.6.m²

Area of tile = 288 cm² = 0.0288 m²

No. of tiles = Area of floor/ area of tile

= 21.6/0.0288

= 750

<h3>750 tiles can be put into the space </h3>
5 0
2 years ago
What is the slope of the line that passes through the points(−8,2) and (-11, 3)? Write your answer in simplest form.
Fiesta28 [93]

Answer: -1/3

Step-by-step explanation:

The formula is y2 - y1/ x2 - x1 . So the answer would be -1/3 bc 3 - 2 = 1 and -11 - (-8) = -3.

7 0
2 years ago
Read 2 more answers
Plz help!
Marizza181 [45]

Answer:

800 is the answer

Step-by-step explanation:

90-40= 50---->4000/50=800

4 0
3 years ago
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