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Leokris [45]
3 years ago
10

2. There were 1240 tickets sold for a concert. Of these, 780 were sold at $24.50 each,

Mathematics
1 answer:
astraxan [27]3 years ago
7 0

Answer:

28126 total

Step-by-step explanation:

1240-780=460

24.50 - 20%=4.90

24.50-4.90

780*24.50=19110

19.60 * 460=9016

19110+9016=28126

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X^2 - y^2 = 100
luda_lava [24]

Answer:

20

Step-by-step explanation:

Let's start by rewriting the second equation in terms of "x":

x+y=5

Subtract y from both sides:

x=5-y

Now, substitute "5-y" for "x" in the first equation:

(5-y)^2-y^2=100

Note that:

(a-b)^2=a^2-2ab+b^2

25-10y+y^2-y^2=100

Cancel out like terms:

25-10y=100

Subtract 25 from both sides:

-10y=75

Divide both sides by -10

y=\frac{75}{-10}=\frac{15}{-2}=-\frac{15}{2}

Now, substitute this value back into either of the equations to solve for x.

x+y=5\\x-\frac{15}{2}=5\\

Add 15/2 to both sides:

x=5+\frac{15}{2}\\x=\frac{10}{2}+\frac{15}{2}\\x=\frac{25}{2}

Now, find the difference:

x-y=\frac{25}{2}-(-\frac{15}{2})=\frac{25}{2}+\frac{15}{2}=\frac{40}{2}=20

8 0
3 years ago
Which element of variation would not be affected by adding the data value 15 to the data set {3, 5, 6, 8, 9, 10, 13, 14}
Andrei [34K]
It is 13,14 because it goes up two then one one then two again which will then mess up the rotation
8 0
3 years ago
A point is reflected across the y axis the new point is located at -4.25,-1.75 write the order pair that represents the original
Naya [18.7K]

Answer:

(4.25, - 1.75)

Step-by-step explanation:

Under a reflection in the y- axis

a point (x, y ) → (- x, y ), thus

(- 4.25, - 1.75 ) → (4.25, - 1.75 ) ← original point



5 0
3 years ago
Can you help me please?
KIM [24]

Answer:

option c.

n=12

.................................

7 0
3 years ago
How do you simplify this sum?
earnstyle [38]

Answer:

\frac{t + 1}{t - 5}

Step-by-step explanation:

The solution is in the picture

5 0
4 years ago
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