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Rainbow [258]
2 years ago
13

The average price of a gallon of orange juice from October 2013 to September 2014 can be modeled by the function f shown, where

x represents the number if months since October 2013,
f(x)=6.12+0.03x

Complete the sentence to describe the change in average price of a gallon of orange juice from October 2013 to September 2014

The average price of a gallon of orange ( 1st-Blank) by (2nd-Blank) each month

1st -Decreased OR Increased
2nd- 3% OR 612% Or $0.03 OR $6.12
Mathematics
1 answer:
Hatshy [7]2 years ago
5 0

Answer:

The average price of a gallon of orange increased by $0.03 each month.

Step-by-step explanation:

It is 11 months between October 2013 and September 2014 so the price after 11 months =

f(11) = 6.12 + 0.03(11)

= 6.12 + 0.33

= $6.45.

This is an increase of 0.33 / 11 = 0.03 / month.

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Emily and a friend bought two tickets to see a soccer game. Each ticket cost $8.25. The friends paid a total of $24.40, which in
Yakvenalex [24]

Answer:

$7.90

Step-by-step explanation:

8.25 multiplied by 2 is 16.50. so 24.40 minus 16.50 is 7.90

which makes the answer $7.90

5 0
2 years ago
Samantha walked 10 miles in 5 hours. What was her walking rate in miles per hour?
Vitek1552 [10]

Answer:

2 miles per hour

Step-by-step explanation:

5 hours = 10 miles

Your gonna have to divide 10 by 5 to get the answer

10 ÷ 5 = 2

3 0
2 years ago
Jenna dances for 3 hours on sunday, 2 hours on Monday and Tuesday, 1 hour on THursday,1.5 hours oon friday, and 2 hours on Satur
Delicious77 [7]

Answer: The average number of hours she danced per day is 1.9 hours (rounded to the nearest tenth)

Step-by-step explanation: We start by calculating how many hours she danced all together which can be derived as follows;

Summation = 3 +2 +2 + 1 + 1.5 + 2 = 11.5

The number of days she danced which is the observed data is 6 days (she did  not dance at all on Wednesday).

The average (or mean) hours she danced each day can be calculated as

Average = ∑x ÷ x

Where ∑x is the summation of all data and x is number of observed data

Average = (3+2+2+1+1.5+2) ÷ 6

Average = 11.5 ÷ 6

Average = 1.9166

Approximately, average hours danced is 1.9 hours (to the nearest tenth)

8 0
1 year ago
A psychologist is collecting data on the time it takes to learn a certain task. For 50 randomly selected adult subjects, the sam
tatuchka [14]

Answer: (15.263,\ 17.537)

Step-by-step explanation:

According to the given information, we have

Sample size : n= 50

\overline{x}=16.40

s=4.00

Since population standard deviation is unknown, so we use t-test.

Critical value for  95 percent confidence interval  :

t_{n-1,\alpha/2}=t_{49, 0.025}= 2.009575\approx2.010

Confidence interval : \overline{x}\pm t_{n-1, \alpha/2}\dfrac{s}{\sqrt{n}}

16.40\pm (2.010)\dfrac{4}{\sqrt{50}}\\\\=16.40\pm1.13702770415\\\\=16.40\pm1.1370\\\\=(16.40-1.1370,\ 16.40+1.1370)\\\\=(15.263,\ 17.537)

Required 95% confidence interval :  (15.263,\ 17.537)

8 0
2 years ago
Marcello is constructing the perpendicular bisector of AB¯¯¯¯¯. He has already constructed arcs as shown.
Ratling [72]

Answer: "Use the straightedge to draw a line through points X and Y." is the right answer.


Step-by-step explanation:

To perpendicular bisector of line segment AB. There are following steps:

1) Draw arcs from points A and B on the both sides of AB.

2) Name the intersection points as X and Y.

3) Use the straightedge to draw a line through points X and Y.

4) Name the point as O

hence we have construct perpendicular bisector XY of AB which bisects at O.

3 0
2 years ago
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