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grigory [225]
3 years ago
13

At an ice cream store, a family ordered 1 banana split and 2 hot fudge sundaes, paying a total of $11 for their order. The next

customer ordered 4 banana splits and 3 hot fudge sundaes and paid $29. How much does each item cost?
Mathematics
1 answer:
Vladimir [108]3 years ago
8 0

Answer:

$5 and $3

Step-by-step explanation:

Cost of banana split = b

Cost of hot fudge sundae = s

  • b + 2s = 11
  • 4b + 3s = 29

<u>From the first equation we get: </u>

  • b = 11 - 2s

<u>Replacing in the second equation:</u>

  • 4(11 - 2s) + 3s = 29
  • 44 - 8s + 3s = 29
  • 44 - 29 = 5s
  • 15 = 5s
  • s = 15/5
  • s = 3

Then

  • b = 11 - 2*3 = 11 - 6 = 5

So banana split costs $5 and hot fudge sundae costs $3

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Convert the improper fraction to a mixed number.<br> 17<br> 3
Zigmanuir [339]

Answer:

is it 17 over 3 is that what u need to be improper

5 0
3 years ago
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An adult's dinner costs $7. A family of 2 adult's and 2 children pays $22 for their dinners. How many does a child's dinner cost
bonufazy [111]

Answer:

A child's dinner costs $4

Step-by-step explanation:

7 + 7 = 14

22 - 14 = 8

8 / 2 = 4

8 0
3 years ago
Why don't we measure spread about the mean by simply averaging x − x , the deviations of individual data values from their mean?
skad [1K]

Answer:

Because this spread will add up to zero

Step-by-step explanation:

Mean defines the center of the data. Some values are below this center and some values are above this center.

For the values which are below the center (i.e. less than the mean), when mean is subtracted from these values, this results in negative numbers.

For the values which are above the center(i.e. greater than the mean), when mean is subtracted from these values, this results in positive numbers.

When these negative and positive numbers are summed together, as it is, they cancel out each other, leaving an answer equal to zero, which would be meaningless. As a spread of 0 would mean all data values are the same, when infact they aren't.

To avoid this, the difference of mean from the data value is squared, so that we can get all positive values, and then these values are added up together to calculate the spread of the data.

Conclusion:

The average of deviations of individual data from the mean will result in answer equal to zero, as a result they are squared first before finding the average.

7 0
3 years ago
Is the square root of -11.2 a rational number?
Schach [20]
No, it is an imaginary number.
Can't take the square root of a negative number without creating a method termed an imaginary number, which is the square root of -1 which they have used " i " to signify.
Then square root of -11.2 would be written Sqrt(11.2)i.  The Sqrt(11.2) = 3.3466
so the answer is 3.3466i

 
5 0
3 years ago
A) NO CHANGE
ollegr [7]

The most appropriate choice for sentence correction will be given by:

<h3>What is sentence correction?</h3>

Sentence correction is a type of grammatical practice where a sentence is given with a word or a phrase that requires grammatical changes or improvement.

Now,

  • In the given sentence, "Wilmers and Estes caution, however, that <u>having more otters</u> will not automatically solve the problem of higher levels of carbon dioxide in the air".
  • The most appropriate choice for sentence correction will be given by: the otters multiplying (option B).

To learn more about sentence correction, refer to the link: brainly.com/question/14632568

#SPJ4

6 0
1 year ago
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