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Ainat [17]
2 years ago
15

20

Mathematics
1 answer:
Alexus [3.1K]2 years ago
3 0

Answer:

A wildlife biologist tracks the number of wolves in a particular region. Data for 15 months is shown. Use the

data to make a frequency table with intervals.

15, 19, 24, 28, 26, 29, 17, 16, 17, 14, 22, 20, 18, 27, 27

a. Wolves Observed

Number of Wolves Frequency

15  19 6

20  24 3

25  29 5

c. Wolves Observed

Number of Wolves Frequency

14  17 5

18  21 3

22  25 2

26  29 5

b. Wolves Observed

Number of Wolves Frequency

14  16 3

17  19 4

20  24 3

25  29 5

d. Wolves Observed

Number of Wolves Frequency

14  17 5

18  21 3

22  25 3

26  29 4

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Lupe and her friends spend $20 on hot dogs and popcorn at a
vodomira [7]

Answer:

They buy 6 hotdogs and 5 popcorn

Step-by-step explanation:

Assume that they buy x hotdogs and y popcorn

∵ They buy a total of 11 hotdogs and popcorn

∵ The number of hotdogs is x and the number of popcorn is y

∴ x + y = 11 ⇒ (1)

∵ Hot dogs cost $2.50 each

∵ Popcorn costs $1.00 each

∵ They spend $20 on hot dogs and popcorn

→ Multiply x by 2.5 and y by 1, add the products and equate the sum by 20

∴ 2.5(x) + 1(y) = 20

∴ 2.5x + y = 20 ⇒ (2)

Now we have a system of equations to solve it

→ Subtract equation (1) from equation (2)

∵ (2.5x - x) + (y - y) = (20 - 11)

∴ 1.5x + 0 = 9

∴ 1.5x = 9

→ Divide both sides by 1.5 to find x

∴ x = 6

→ Substitute the value of x in equation (1) to find y

∵ 6 + y = 11

→ Subtract 6 from both sides

∴ 6 - 6 + y = 11 - 6

∴ y = 5

∴ They buy 6 hotdogs and 5 popcorn

8 0
2 years ago
Below is the graph of f ′(x), the derivative of f(x), and has x-intercepts at x = –3, x = 1 and x = 2. There are horizontal tang
guapka [62]

the derivitive is just the slope

minimum happens when the derivitive goes from negative to positive, imagine a slope of the function, the minimum is where the slope goes from neative to positive, and to get there, it has to pass through 0

max happens when the derivitive goes from positive to negative

increaseing is when the derivitive is positive



so, based on what you said, the slope of f(x) is 0 at x=-3, x=1 and x=2 since those are where the derivitive is 0 (derivitive is just the slope)

A and B are wrong because the derivitive isn't 0 at those points

C is correct because increasing means that the derivitive is positive, and so therefo since the only hoirontal place in between 1 and 2 is 1.5, it must remain positive throughout and not dip down, C is right

D is wrong then




answer is C
5 0
3 years ago
su ling started an art project with 1 yard of felt. she used to 2/6 yards on Tuesday and 3/6 yards on Wednesday. how much felt d
Natasha_Volkova [10]
1/6 yards. All you have to do is add the two upper numbers (numerator) ans then subtract 6/6 - 5/6
5 0
3 years ago
Read 2 more answers
1/2×1/3×1/4 need to show work
klasskru [66]
1x1x1=1
2x3x4=6x4=24
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3 0
3 years ago
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Andrew rents bowling shoes for $4. He bowls 2 games. Andrew spent a total of $22. How much was the cost of each game, b? Complet
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Answer:

2b + 4 = 22

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Step-by-step explanation:

8 0
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