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Zinaida [17]
2 years ago
10

In a study, a group of 10-year-old boys are fed doughnuts every morning for a week and then weighed to see how much weight they

gained. which factor is the dependent variable?
Mathematics
2 answers:
Yakvenalex [24]2 years ago
7 0
The amount of weight gained
KonstantinChe [14]2 years ago
7 0
The amount of the weight they gained would be the answer :)
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Two sides of a triangle measure 15 inches and 18 inches, respectively. Which of these is NOT a possible length for the third sid
Leno4ka [110]
The answer to your question is D
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3 years ago
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A submarine left Diego Garcia five hours before a cruise ship. The ships traveled in opposite directions. The cruise ship travel
Rina8888 [55]

Answer:

The speed of the submarine is 15.429 miles per hour.

Step-by-step explanation:

Let suppose that both ships travel at constant velocities. As we know that both travel in opposite directions, it is supposed that cruise ship moves in +x direction, whereas submarine in -x direction. Kinematic equations for each sheep are described below:

Ship

x_{Sh} = x_{o} + v_{Sh}\cdot t

Submarine

x_{Su} = x_{o}+v_{Su}\cdot t

Where:

x_{o} - Position of Diego Garcia island, measured in miles.

x_{Sh}, x_{Su} - Current positions of ship and submarine, measured in miles.

v_{Sh}, v_{Su} - Velocities of ship and submarine, measured in miles per hour.

t - TIme, measured in hours.

If we know that x_{Sh} - x_{Su} = 241\,mi, v_{Sh} = 19\,\frac{mi}{h} and t = 7\,h, then:

x_{Sh} - x_{Su} = (v_{Sh}-v_{Su})\cdot t

We clear now the velocity of submarine:

\frac{x_{Sh}-x_{Su}}{t} = v_{Sh}-v_{Su}

v_{Su} = v_{Sh}-\frac{x_{Sh}-x_{Su}}{t}

v_{Su} = 19\,\frac{mi}{h} -\frac{241\,mi}{7\,h}

v_{Su} = -15.429\,\frac{mi}{h}

Speed of the submarine is the magnitude of its velocity, which is 15.429 miles per hour.

4 0
3 years ago
5. Mai attempted 40 free throws and was successful 25% of them. How many free throws did
Kipish [7]

Answer:

10 were successful

Step-by-step explanation:

40x25%=10

4 0
2 years ago
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Nathan is 5 years older than dan. if the total of their ages is 19, how old is dan?
aleksandr82 [10.1K]
19-5=14 -5 =9 Dan is 9
8 0
3 years ago
I need urgent help!!
Alex787 [66]

Answer:

B

Step-by-step explanation:

x - 5/8 + 1/8 = 6/8 = -3/8 if u simplify

to simplify u need to see how many times it can be shrunk to do it

hope that helped

8 0
3 years ago
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