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lubasha [3.4K]
3 years ago
14

In a competition of 50 professional ballroom dancers, 22 compete in the fox-trot competition, 18 compete in the tango competitio

n, and 6 compete in both the fox-trot and tango competitions. How many dancers compete in the fox-trot or tango competitions?
Mathematics
2 answers:
DaniilM [7]3 years ago
7 0

Answer:

ballroom?

Step-by-step explanation:

elena-s [515]3 years ago
3 0

Answer:

28 compete in the fox trot and 24 compete in the tango.

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On an algebra test ,the highest grade was 42 points higher than the lowest grade. The sum of the two grades was 138 find the low
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lowest = x \\ highest = x + 42
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138 - 42
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2x \div 2x \\ 96 \div 2
x = 48
48 + 42 = 90
the lowest grade is 48, while the highest is 90.
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Answer:

Step-by-step explanation:

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At 3:30 p.m., Berto’s train was 34 miles past the egg farm, traveling at an average speed of 85 miles per hour. At the same time
timurjin [86]

E=egg farm

x=distantce between  the Berto´s trains and the meeting point.

t=time where the trains meet up

⇒110 miles/h                                          ⇒85miles/h

[---------------------------E----------------------]-------------------------------------X

[............12 miles.......][........34 miles.....][------------ x ----------------------]

distance between Berto´s train and Eduardo´s train=

=12 miles+34 miles=46 miles.

S=d/t      ⇒d=S*t

S=seed

d=distance

T=time

Eduardo´s train;

46 miles+x=t*110 miles/h  ⇒x=t*110 miles/h-46 miles  (1)

Berto´s train;

x=t*85 miles/h  (2)

With the equations (1) and (2) we suggest this system equations:

x=t* 110 miles/h-46 miles

x=t*85 miles/h

we solve this system equiations :

t*110 miles/h-46 miles=t*85 miles/h

110t miles/h-85t miles/h=46 miles

25 t miles/h=46 miles

t=46 miles/25 miles/h=1,84 hour  (≈1 hour, 50 minutes, 24 seconds)

x=t*85 miles/h=156,4 miles

Solution: 1,84 hour

3 0
3 years ago
Read 2 more answers
You are a contractor who is installing a new wooden fence for a customer. The dimensions of the fence are 20 feet long and 6 fee
ahrayia [7]

Answer:

$132

Step-by-step explanation:

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Now we know the total number of planks, we need to find what is the cost of each plank. We know that one wood plank area is 2 sq. ft ( 6*0.33333). Therefore, the cost of each plank is = cost per area(sq.ft) multiply by total area (sq. ft).

cost per plank = 2 * $1.10 =$2.20.

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So, we can find total cost as 60*2.20= $132

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What is a standard transmission
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Answer:

i would say B a stick shift

Step-by-step explanation:

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