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12345 [234]
2 years ago
8

At a carnival, food tickets cost $2 each and ride tickets cost $3 each. A total of $1,240 was collected at the carnival. The num

ber of food tickets sold was 10 less than twice the number of ride tickets sold.
The system of equations represents x, the number of food tickets sold, and y, the number of ride tickets sold.

2x + 3y = 1240

x = 2y – 10

How many of each type of ticket were sold?
Mathematics
2 answers:
Zielflug [23.3K]2 years ago
8 0
2(2y-10)+3y=1240
7y-20=1240
7y=1260
y=180
2x+3(180)=1240
2x+540=1240
2x=700
x=350
So they sold 350 food tickets and 180 ride tickets in total.
#TeamAlvaxic
Hoochie [10]2 years ago
8 0

Answer:

Here, x represents the umber of food tickets sold and  y represents the number of ride tickets sold.

Given the system of equations:

2x+3y = 1240         ....[1]

x = 2y-10              ....[2]

Substitute the equation [2] into [1] we have;

2(2y-10)+3y = 1240

Using distributive property,

a \cdot(b+c) = a\cdot b+ a\cdot c

4y-20+3y = 1240

Combine like terms;

7y-20 = 1240

Add 20 to both sides we have;

7y= 1260

Divide both sides by 7 we have;

y = 180

Substitute this in [2] we have;

x = 2(180)-10 = 360-10 = 350

therefore, each type of ticket were sold are:

the number of food tickets sold is, 350 and the number of ride tickets sold is, 180

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Fed [463]

Answer:

we cannot conclude hat the proportion of wives married less than two years who planned to have children is significantly higher than the proportion of wives married five years

Step-by-step explanation:

Given that in a study on the fertility of married women conducted by Martin O’Connell and Carolyn C. Rogers for the Census Bureau in 1979, two groups of childless wives aged 25 to 29 were selected at random, and each was asked if she eventually planned to have a child. One group was selected from among wives married less than two years and the other from among wives married five years.

Let X be the group married less than 2 years and Y less than 5 years

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Since p is less than alpha 0.05 we cannot conclude hat the proportion of wives married less than two years who planned to have children is significantly higher than the proportion of wives married five years

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2 years ago
Ashton surveyed some of the employees at his company about their cell phone habits. From the data, he concluded that most employ
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It can't be A. since if you only look at managers, you are missing all the sales executives.

It may be C. this option is more random but doesn't guarantee that you will represent both groups of employee's. Also, each time you would conduct the survey, you will receive the exact same results since it is the same people. 

It isn't D. for the exact same reason as A. but you're missing managers now. 

Therefore the answer is B. Some managers and some sales executives selected at random. This way you get a sample from both categories, and within those groups, it is randomly selected.

 I hope this helps!

 
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I believe the answer is $100 for 5 tickets. I hope this helps!
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Step-by-step explanation:

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The answer should be B) an=3+5(n-1)

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