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Darya [45]
3 years ago
11

Barbara sells iced tea for a $1.49 per bottle and water for $1.25 per bottle. She wrote a equation to find the number of drinks

she needs to sell to earn $100.
1.25x + 1.49= 100

What error did Barbara make in writing the equation?
A. Barbara’s equation did not consider the number of water drinks.
B. Barbara’s equation did not consider the number of iced tea drinks.
C. Barbara equation dining use the correct price for iced tea drinks
D. Barbara’s equation did not use the correct total of sales
Mathematics
2 answers:
Debora [2.8K]3 years ago
4 0
Answer B is correct. She forgot to use a variable for 1.49. The correct equasion would be:
1.25x + 1.49y = 100
Oksana_A [137]3 years ago
4 0

Answer:

B. Barbara’s equation did not consider the number of iced tea drinks.

Step-by-step explanation:

Barbara sells iced tea for a $1.49 per bottle and water for $1.25 per bottle.

She wrote a equation to find the number of drinks she needs to sell to earn $100.

1.25x+1.49=100 ; here x is the number of water bottles sold.

She forgot to write a variable with 1.49 like :

1.25x+1.49y=100

Therefore, the answer is : Barbara’s equation did not consider the number of iced tea drinks.

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7. A=15; b= (blank); c= 17
kondor19780726 [428]

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Given that (2,8) is on the graph of f(x),find the corresponding point for the function -3/4 f(x)
yuradex [85]

Answer:

Corresponding point to (2,8) along -3/4 f(x) = ( -1.5 , -6 )

Explanation:

 When a graph f(x) is multiplied by a factor k, the points on the graph also changes by (kx, ky).

Here it is given that (2,8) is on the graph of f(x)

Now we need to find corresponding point to (2,8) along -3/4 f(x)

x - coordinate = \frac{-3*2}{4} =-1.5

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So corresponding point to (2,8) along -3/4 f(x) = ( -1.5 , -6 )

8 0
3 years ago
What is the average rate of change of the function over the interval x = 0 to x = 8? f(x)=2x−1/3x+5 Enter your answer, as a frac
max2010maxim [7]

Answer:

15 2/3, or 47/3


Step-by-step explanation:

I'm going to assume, correctly or not, that you actually meant f(x) = 2x^2 - (1/3)x + 5.  Double check on this right now, please.

If I'm right, then evaluate f(x) at x = 0 and x = 8:

f(0) = 5

and

f(8) = 2(8)^2 - (1/3)(8) + 5 = 128 - 8/3 + 5 = 133  - (2 2/3), or:   130 1/3

Then the average rate of change of f(x) = 2x^2 - (1/3)x + 5 over the interval [0,8] is:

                130 1/3 - 5         125 1/3

a. r. c. = ------------------- = ---------------- = 15 2/3, or 47/3

                     8 - 0                  8

3 0
3 years ago
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