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Stolb23 [73]
3 years ago
5

What is the length of CD? In this diagram, AABC ~ AEDC.

Mathematics
1 answer:
fgiga [73]3 years ago
3 0

Answer:

\implies\overline {CD} = 4

Step-by-step explanation:

\triangle ABC \sim \triangle EDC... (given)

\therefore \frac{BC}{CD} = \frac{AC}{EC}..(by\: c. s. s. t)

\therefore \frac{20-x}{x} = \frac{20}{5}

\therefore \frac{20-x}{x} = \frac{4}{1}

4x = 20- x

4x + x = 20

5x = 20

\therefore x = {20}{5}

\therefore x = 4

\huge \purple {\boxed {\implies\overline {CD} = 4}}

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Answer these 3 questions ASAP pls..
matrenka [14]
That’s the answers hope this helps.

7 0
3 years ago
At a recent marathon, spectators lined the street near the starting line to cheer for the runners. The crowd lined up 5 feet dee
masha68 [24]

Answer:

29568 people cheered for the runners at the start of the race

Step-by-step explanation:

From the question, the crowd lined up 5 feet deep on both sides of the street for the first mile.

This lined up crowd could be related to a rectangle that is 1 mile long and 5 feet wide.

First, Convert 1 mile to feet

1 mile = 5280 feet

Hence, the length of the rectangle is 5280 feet and the width is 5 feet.

Now, we will determine how many 5 feet by 5 feet square we can get from the 5280 feet by 5 feet rectangle. To do that, we will divide 5280 feet by 5 feet

5280 feet ÷ 5 feet = 1056

Hence, from the rectangle, we can get 1056 5 feet by 5 feet square.

From the question, you estimate that 14 people can comfortably fit in a square that measures 5 feet by 5 feet,

∴ 14 × 1056 people will comfortably fit in the crowed lined up 5 feet deep on one side of the street for the first mile.

14 × 1056 = 14784 people

This is the amount of people that will comfortably fit in the crowed lined up 5 feet deep on one side of the street for the first mile.

Since the crowd lined up on both sides of the street, then

2 × 14784 people will comfortably fit in the crowed lined up 5 feet deep on both sides of the street for the first mile

2 × 14784 = 29568 people

Hence, 29568 people cheered for the runners at the start of the race.

5 0
3 years ago
Which fractions are equivalent to 1/8+5/8? Check all that apply.
dolphi86 [110]
The equivalent fractions are 3/4 & 12/16 hope this helps!!
7 0
3 years ago
Read 2 more answers
. A tennis supply store pays a wholesaler $90 for a tennis racquet and sells it for $144. What is the markup rate?
I am Lyosha [343]


Formula : Amount of change / Original amount

             1.      144 - 90/ 144

             2.      Subtract 144 and 90

             3.      54/ 144

             4.      Divide 54 by 144

             5       0.375

             6       Move the decimal two places to the right.

              7.      37.5 %

Answer: 37.5% is the markup rate

6 0
3 years ago
[hurry please] What is the probability of spinning yellow on both spinners?
ehidna [41]

Answer:

1/3

Step-by-step explanation:

There are six options in total and two if these are yellow. therefore the answr us 2/6 which simplifies to 1/3 meaning the answer is 1/3.

7 0
2 years ago
Read 2 more answers
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