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sesenic [268]
2 years ago
13

Find the value of the variable or the measure of the missing part of each kite BD=

Mathematics
1 answer:
nataly862011 [7]2 years ago
7 0

Step-by-step explanation:

ED = EB

2x +3 = 5x -15

3+15=5x -2x

18 = 3x

18 ÷ 3 = x

x = 6

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The students at a High School earned money for an international animal rescue foundation. 82 seniors earned an average $26.75 pe
Anon25 [30]

Answer: A. $16.13

Step-by-step explanation:

Total students = 82+74+96+99 =351

Sum of earnings of 82 seniors  = $26.75  x 82= $2193.5

Sum of earnings of 74 juniors  = $12.25 x 74 = $906.5

Sum of earnings of 96 sophomores  = $15.50  x 96 = $1488

Sum of earnings of 99 freshmen  =  $10.85 x 99 = $1074.15

Total earnings =  $2193.5  + $906.5+  $1488 +$1074.15

= $5662.15

(Total earnings) ÷ (Total students )

= $5662.15÷ 351

= $16.13

4 0
3 years ago
Kyle scored 24 points in his first game and 42 points in his second game. By what percent did his points increase?
UkoKoshka [18]

Answer:

44%

Step-by-step explanation:

That's the answer I originally wrote before someone reported it just to be mean.

7 0
3 years ago
Please help 10 points PLEASE HELP
zhannawk [14.2K]
I did the math twice and it should be 45 I’m pretty sure
5 0
3 years ago
For the following linear system, put the augmented coefficient matrix into reduced row-echelon form.
Bingel [31]

Answer:

The augmented matrix of the system is \left[\begin{array}{cccc}2&3&-1&14\\1&2&1&4\\5&9&2&7\end{array}\right].

We apply operations rows:

1. We swap row 1 and 2 and obtain the matrix \left[\begin{array}{cccc}1&2&1&4\\2&3&-1&14\\5&9&2&7\end{array}\right].

2. Of the above matrix we subtract row 1 from row 2 twice (R2 - 2R1) and we subtract row 1 from row 3, 5 times. (R3-5R1). We obtain the matrix \left[\begin{array}{cccc}1&2&1&4\\0&-1&-3&6\\0&-1&-3&-13\end{array}\right]

3. Of the above matrix we subtract row 2 from row1 twice (R3 - R2) and multiply the row 1 by -1 (-R2). Weobtain the matrix \left[\begin{array}{cccc}1&2&1&4\\0&1&3&-6\\0&0&0&-19\end{array}\right].

Since each pivote is an one then we conclude that the above matrix is the reduced row-echelon form of the matrix of the system.

8 0
3 years ago
"A parachutist's rate during a free fall reaches 80 meters per second. What is this rate in feet per second? At this rate, how m
yawa3891 [41]
Assuming 70 m/s is terminal velocity

1 meter = 3.3 ft 

so 70 meters = 231 

231 ft/s


231 x 5 = 1155ft 
hope i helped

5 0
3 years ago
Read 2 more answers
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