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rewona [7]
4 years ago
11

Karen sells tickets at a movie theater. Last night she sold 128 tickets for a total of $1108. Adult's tickets cost $10 and child

ren's tickets cost $6. How many of each kind of ticket did Karen sell?
Mathematics
1 answer:
tresset_1 [31]4 years ago
8 0

Answer:

Adult's tickets 85

children's tickets 43

Step-by-step explanation:

x + y = 128

10x + 6y = 1108

x = 128 - y

10(128 - y) + 6y = 1108

1280 - 10y + 6y = 1108

1280 - 4y = 1108

-4y = 1108 - 1280

-4y = -172

y = -172/-4

y = 43

x = 128 - y

x = 128 - 43

x = 85

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The price of a house decreased from $500,000 to $400,000 in one year. What is the percent decrease?
-BARSIC- [3]

Answer:

A) 20%

Step-by-step explanation:

A) ✅

500000(0.2) = 100,000

500000 - 100,000 = 400,000

B) ❌

500000(0.25) = 125,000

500000 - 125,000 = 375,000

C) ❌

500000(0.3) = 150,000

500000 - 150,000 = 350,000

D) ❌

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500000 - 175,000 = 325,000

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Find the variation constant and an equation of variation where y varies directly as x and y=16 when x=2
Jlenok [28]

Answer:

variation constant = k = 8

equation of variation : y = 8x

Step-by-step explanation:

Any relationship of variation can be written as y = kx

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given

y = 16 when x = 2

substituting this value in the equation y = kx

16 = k*2

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variation constant = k = 8

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Write an equation in​ slope-intercept form of the line that passes through the given point and is parallel to the graph of the g
Shtirlitz [24]

Answer:

The equation in the slope-intercept form is

y = -5x - 41

Step-by-step explanation:

The given equation in the question is;

y = -5x + 2

The equation of a straight line graph can be written in the form;

y = mx + c

where m is the slope and c is the intercept

From here, we can see that the slope m is -5

Since the line is parallel to the new line we are trying to write its equation, it means that they have the same value of intercept.

Hence, the slope of the new line is also -5

Now, we can write the equation of the new line as;

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we need to get the value of c here however

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From the graph, x = -7 and y = -6

Substituting these values, we have;

-6 = -5(-7) + c

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So the equation of the new line will be;

y = -5x - 41

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