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djyliett [7]
3 years ago
7

Carla's retirement party will cost $15 if she invites 3 guests. If there are 4 guests, how much will Carla's retirement party co

st? Assume the relationship is directly proportional.
Mathematics
2 answers:
LekaFEV [45]3 years ago
7 0

Answer:

$20

Step-by-step explanation:

15/3=5 which means that for every guest attending Carla's retirement party it must cost her $5 each.

Therefore if 4 guests come to the party it must mean 4(5) which is 20.

Hence $20

Lana71 [14]3 years ago
6 0

Answer:

If there are 4 guest Carla's retirement party will cost $20.

Step-by-step explanation:

First, you have to figure out how much money is needed for one guest;

15÷3= $5

Each guest costs $5. Now you just multiply by 5 by 4.

Thus, the answer is $20.

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Taylor and Nora go to the movie theater and purchase refreshments for their friends. Taylor spends a total of $69.00 on 6 drinks
fgiga [73]

Answer:

The system if equation that can be used to derive this are

6x + 4y = 69 AND

12x + y = 96

The price of a drink is $7.5

Step-by-step explanation:

The question here says that Taylor and Nora went to the movie theater and purchase refreshments for their friends. Taylor spends a total of $69.00 on 6 drinks and 4 bags of popcorn Nora spends a total of $96.00 on 12 drinks and bag of popcorn.And we are now told to write a system of equations that can be used to find the price of one drink and the price of one bag of popcorn. Using these equations,we should determine and state the price of a drink, to the nearest cent .

Now, Let's assume that the price of a drink is "X" and that of a bag of popcorn to be Y

The first person made a purchase which led to the equation

6x + 4y = 69______ equation 1

And the second person also made a purchase that lead to the equation

12x + y = 96_____ equation 2

We make y the subject of the formula in equation 2 and apply it in 1

Y = 96 - 12x

Now apply the above in equation 1

6x + 4y = 69

6x + 4(96 - 12x)= 69

6x + 384 - 48x = 69

42x = 384 - 69

X = 315/42

X = 7.5

Substitute x= 7.5 in equation 2

12x + y = 96

12(7.5) + y = 96

90 + y = 96

Y = 6

Therefore, the price of a drink is $7.5

4 0
3 years ago
Read 2 more answers
The width of a rectangle is 18 meters less than twice the length, x. The width of the rectangle is 68 meters. Which equation can
Morgarella [4.7K]

Answer:

None of the options are correct, as the answer is <u>2x - 18 = 68.</u>

Step-by-step explanation:

The <u>2x</u> represents the length (x) being half of the width (68)

The <u>-18</u> represents the width (68) being 18 less than twice the length (2x)

8 0
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I pay 25,000 for a car it depreciates at a rate of 10% what is the value of the car in 7 year
Murrr4er [49]

Answer:

2500

Step-by-step explanation:

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3 years ago
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trapecia [35]

Answer:

206.4

Step-by-step explanation:

we multiply 8.6*24 and get 206.4

we know this because 1 gallon is equal to 8.6 so we multiply both quantities and get 206.4

8 0
3 years ago
The following statement is an example of: every fall there have been hurricanes in the tropics. Therefore, there will be hurrica
Aneli [31]

Answer:

Deductive reasoning

Step-by-step explanation:

Here, we want to know the kind of reasoning the statement is.

In this question, the kind of reasoning is deductive

In the deductive reasoning type, we go from general cases to specific cases

It is just like saying the reason why there will be hurricanes in the tropics this fall is because there is an hurricane every fall

So we have gone from a general case to give a specific case

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