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emmasim [6.3K]
3 years ago
10

triangle ABC above is isosceles with AB=AC and BC =48. the ratio of DE is 5:7. what is the length of DC

Mathematics
2 answers:
marshall27 [118]3 years ago
6 0

Answer:

28

Step-by-step explanation:

Question Image is attached.

Triangle BED and Triangle CFD are similar.

We can let the length of BD be 5x and DC 7x

We also know BC = 48, thus we can write:

5x + 7x = 48

12x = 48

x = 4

Now, Since DC = 7x, we plug in x = 4 into it.

DC = 7x

DC = 7(4)

DC = 28

Length of DC is 28

natima [27]3 years ago
5 0

Answer:

28

Step-by-step explanation:

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if one apple cost 5 rupee orange cost 0.5 rupee and grape cost 0.25 rupee . find the number of apple orange ad grape we can buy
Likurg_2 [28]

Answer:

3

Step-by-step explanation:

Add all the costs of the fruit.

5.75

Then divide it by 20.

= 3.4782.....

You can't have a quarter or half and apple so you round down.

Son answer is 3.

Hope this has helped!

8 0
3 years ago
HELP ME PLZ. I NEED THIS DONE TONIGHT.
Alekssandra [29.7K]

Answer:

7

Step-by-step explanation:

3 0
3 years ago
Two trapeziums are similar, thee area of one of the trapezium is 4times that of the other. Determine the ratio of the perimeter
Stolb23 [73]

Answer:

The ratio of the perimeters of the two trapezium is 2

The ratio of the corresponding sides of the two trapezium is 2

Step-by-step explanation:

The given parameters in the question are;

Two trapeziums are similar

The area of one trapezium = 4 × The area of the other trapezium

Let, A₁, and A₂ represent the area of the two trapeziums, we have

A₁ = 4 × A₂

∴ A₁/A₂ = 4

Given that ratio of areas = (Ratio of sides)²

Ratio of sides = Ratio of perimeter

∴ Ratio of areas = (Ratio of perimeter)²

Therefore, given that the ratio of the areas of the two trapeziums A₁/A₂ = 4, we have;

Ratio of areas = 4 = (Ratio of sides)²

The ratio of the corresponding sides = √4 = 2

The ratio of the corresponding sides = 2

Ratio of areas = 4 = (Ratio of perimeter)²

The ratio of the perimeter = √4 = 2

The ratio of the perimeter = 2

3 0
3 years ago
Which of the following is a y-coordinate from the solution set of the system of equations y = -x + 1 and
evablogger [386]
The answer is B)2 :)
6 0
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you purchase a $749,000 home, but can only afford an 8% down payment. calculate your monthly PMI payment, given a premium of 0.8
gayaneshka [121]

Answer:

if only 8% then why even bother with the house lol

Step-by-step explanation:

8 0
3 years ago
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