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const2013 [10]
2 years ago
7

If the length of a rectangle is doubled, and its width is multiplied by 4, the area

Mathematics
1 answer:
agasfer [191]2 years ago
5 0

Answer:

The area would be multipled by 8

Step-by-step explanation:

Say you have a rectangle with the length of 5 and the width of 3, the area would be 15. Double the length, 10, and quadruple the width, 12. The area would be 120. 15 × 8 = 120.

Sorry if I'm wrong.

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Answer:

-9

Step-by-step explanation:

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3 years ago
What will be the area of the given shape? (please help)
Leni [432]

Answer:

620

Step-by-step explanation:

To find the area of strangely-shaped structures, like this one, it is easiest if we cut the shape into smaller, more recognizable, shapes..

We can first cut off the top/center rectangle of this shape , which has a width of 10, and a length of 12. The "area" is length × width.

So, we multiply 12 × 10 to find the area of this section.

12 × 10 = 120

if we look at the bottom half, we can see that there is an identical rectangle (because it has the same width of 10 and length of 12) ! So, we can simply add 120 to our total twice to count both of these areas.

(when putting areas of multiple portions together, we add--not multiply)

  120 (first/top rectangle)

+ 120 (lower rectangle)

_______________

   240

So, our area so far is 240.

Now, we need to find the horizontal (left-right) section of this shape.

We can see that it has a width of 10 (look at the right end), and a length of 38      14 + 10 + 14 (38 total)

So, to find the area of this portion, we will multiply its length × width, which we know is: 38 × 10

38 × 10 = 380.

So, we can now add our areas together:

  240

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So, our area of this shape is 620

6 0
1 year ago
Read 2 more answers
Vi walks five days each week.She walks the same distance on the first two days.On days three and four,Vi walks twice as long as
Alinara [238K]

Vi walks 2 miles on first day, 2 miles on second day, 8 miles on third and fourth day and 1 mile on fifth day.

Step-by-step explanation:

Let,

x be the distance walked by Vi.

Therefore,

On first day = x

Second day = x

On days three and four,Vi walks twice as long as on the first two days

Third and fourth day = 2(x+x) = 2(2x) = 4x

On fifth day = half of first day = \frac{1}{2}x = 0.5x

Total distance = 13 miles

Therefore,

x+x+4x+0.5x =13\\6.5x=13

Dividing both sides by 6.5

\frac{6.5x}{6.5}=\frac{13}{6.5}\\x=2

Distance on first day = x = 2 miles

second day = x = 2 miles

third and fourth day = 4x = 4(2) = 8 miles

fifth day = 0.5x = 0.5(2) = 1 miles

Vi walks 2 miles on first day, 2 miles on second day, 8 miles on third and fourth day and 1 mile on fifth day.

Keywords: distance, addition

Learn more about distance at:

  • brainly.com/question/9323337
  • brainly.com/question/9381080

#LearnwithBrainly

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