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3 years ago

14

The time it takes for a race car to finish a lap (to the nearest tenth of a second) is represented by the variable t. Which set

of numbers best describes the value of t?

1 answer:

jeka943 years ago

3 0

Velocity=Distance/Time
Time(t)=Distance/Velocity
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Jack sold a black jacket for $150 and took 25% profit. At the same time Jack sold a red jacket for $150 and took a 25% lost.

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D would be my answer but idk what I'm doing

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Mark's dad is three times older than Mark. Mark's sister is 2 years younger than Mark. (3m) The sum of their ages is 48. How old

nataly862011 [7]

Answer:

Age of Mark $=10$ years

Age of Mark's dad $=30$ years

Age of Mark's sister $=8$ years

Step-by-step explanation:

Let age of Mark be $x$ years.

Mark's dad is three times older than Mark

Age of her Mark's dad $=3x$

Mark's sister is 2 years younger than Mark

Age of Mark's sister $=(x-2)$ years

The sum of their ages is 48.

$x+3x+x-2=48\\5x-2=48\\5x=50\\x=10$

Age of Mark $=x=10$ years

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Age of Mark's sister $=x-2=10-2=8$ years

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3 years ago

I’m not sure how to do this can anyone help!!!!!

satela [25.4K]

9514 1404 393

Answer:

22/44

Step-by-step explanation:

The probability of black is the ratio of black cards to all cards. If the Ace and 2 are removed from each suit, there will be 11 of the 13 cards remaining. 2 suits are black, for a total of 2×11 = 22 black cards. Of course there are 4 suits altogether, for a total of 4×11 = 44 total cards. Then you have ...

P(black) = (black cards)/(total cards)

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_____

You are expected to be familiar with the fact that a deck of 52 playing cards consists of 4 suits: diamonds, clubs, hearts, spades. Each suit has 13 cards, identified as Ace, 2, 3, ..., 10, Jack, Queen, King. The clubs and spades are black; the diamonds and hearts are red.

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elena55 [62]

Answer:

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Step-by-step explanation:

solved by graphing

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At takeoff a plane flies at an angle of 10 degrees with the runway. After it has traveled a ground distance of 2,800 ft. Find th

Sonja [21]

<h2>Vertical distance gained from takeoff is 493.72 ft</h2>

Step-by-step explanation:

Refer the figure.

Horizontal distance = AB = 2800 ft

Angle = ∠B = 10°

We need to find AC that is h.

We have

$tanB=\frac{AC}{AB}\\\\tan10=\frac{h}{2800}\\\\h=2800\times tan10=493.72ft$

Vertical distance gained from takeoff = 493.72 ft

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