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kirill [66]
3 years ago
9

tickets of a program at college cost $4 for general admission or $3 with a student ID. if 180 people paid to see a performance a

nd $615 was collected, how many of each type of ticket were sold?​
Mathematics
1 answer:
Licemer1 [7]3 years ago
7 0

Answer:

75 general

105 student ID

Step-by-step explanation:

(it's a system)

4x+3y=615

x+y=180

(system as well)

4x+3y=615

x=180-y

4(180-y)+3y=615

720-4y+3y=615

-y=-105

y=105

x+105=180

x=180-105

x=75

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2 (10- 22x0) = (2x + 2)
Lorico [155]

Answer:

x=9

Step-by-step explanation:

2(10-22×0)=(2x+2)

Applying BODMAS

2(10-0)=(2x+2)

2(10)=2x+2

2x+2=20

2x=20-2

2x=18

x=9

3 0
3 years ago
Find the equation equivalent to 2x=4 which is a multiple of 3
stich3 [128]

we have to find equation similar to

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Firstly , we can divide both sides by 2

\frac{2x}{2} =\frac{4}{2}

x=2

now, we can multiply both sides by 3

3*x=3*2

we get

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5 0
3 years ago
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Sophie [7]
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4 0
3 years ago
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Serhud [2]

Answer:

Step-by-step explanation:

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4 0
2 years ago
Find a side of an equilateral triangle with a 12 inch altitude
saveliy_v [14]
Since the triangle is an equilateral triangle we know all of it's sides must be the same length, with that in mind the angles that make up the triangle must be equal as well. Knowing that a triangle's three interior angles make up 180 degrees we know that the size of each angle must be one third of this (as each angle must be equal).

180/3 = 60


then we may split the triangle along it's altitude into two special right triangles
more specifically two 30-60-90 triangles.

this means that the side with 30 degrees will be some value "x" where the side for 60 degrees will be related as it is "x*sqrt(3)" and the hypotenuse (which would be the side of the triangle) would be proportionally "2x"

this would mean that the altitude is the side associated with the 60 degree angle as such we can solve for "x" using this.

12= x*sqrt(3)
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eight square root of three is the answer.
8 0
3 years ago
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