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kobusy [5.1K]
2 years ago
7

The chart indicates the time, speed, and velocity of five runners.

Mathematics
2 answers:
inessss [21]2 years ago
8 0

Answer: Velocity

Step-by-step explanation:

It is given that the chart indicates the time, speed, and velocity of five runners.

Velocity is a vector quantity which tells the rate of change of runner's position with respect to time in a given direction whereas speed has only magnitude but not direction.

Hence, the term which  best describes the runners is Velocity.

Nuetrik [128]2 years ago
5 0
<span>Garreth and Elisa ran together, Luigi and Jasmine went the same distance, and Logan and Jasmine have the same displacement in the opposite direction. This is the answer which is C</span>
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A craftsman can sell 10 jewelry sets for $500 each. He knows
liraira [26]

Answer:15

Step-by-step explanation:

Given

Craftsman sell 10 Jewelry set for $500 each

For each additional set he will decrease the price by $ 25

Suppose he sells n set over 10 set

Earning=\text{Price of each set}\times \text{no of set}

Earning =(500-25n)(10+n)

E=5000+500n-25n^2-250n

differentiate to get the maximum value

\frac{dE}{dn}=-50n+250

Equate \frac{dE}{dn} to get maximum value

-50n+250=0

n=\frac{250}{50}

n=5

Thus must sell 5 extra set to maximize its earnings.

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2 years ago
Veronica put a $400 necklace on layaway by making a 10% down payment
JulsSmile [24]

7 weeks APEX LEARNING

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2 years ago
Jo is on the phone with a gardener who asks about the square feet of Jo's backyard. Jo counts 20 steps long and 40 steps wide (w
Sever21 [200]

Hey there!

Each step is three feet. This can be represented by 3s= feet. We can plug that in to figure out our side lengths.

20(3)=60

40(3)=120

Now we can multiply these two together to get the area.

120(60)= 7,200

Therefore, his backyard is about 7,200 square feet.

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4 0
2 years ago
Two people start walking at the same time in the same direction. One person walks at 8 mph and the other person walks at 2 mph.
schepotkina [342]
Time = distance/speed

The distance between the walkers increases at the rate of (8 mph) -(2 mph) = 6 mph. That distance will be 4.5 mi after ...
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7 0
2 years ago
A man has 28 coins in his pocket, all of which are dimes and quarters. if the total value of his change is 520 cents, how many d
nordsb [41]
Assuming x = dimes, y = quarters

x + y = 28 \\ 0.1x + 0.25y = 5.20

x + y = 28 \\ x = 28 - y

Substitute that into,
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Answer : He has 16 quarters.

Hope this helps. - M
5 0
2 years ago
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