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2 years ago

If x/3 = -15 then x = -45

Mathematics

1 answer:

vitfil [10]2 years ago

6 0

Yes, but what is the question

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równanie zmiany prędkość autokaru poruszającego się po prostym odcinku szosy i rozpoczynającego hamowanie od szybkości 20m/s ma

Rasek [7]

Answer:

s = 22.5 m

Step-by-step explanation:

the equation for the speed change of a coach moving along a straight section of the road and starting braking at a speed of 20 m / s has the form v (t) = 25-5t. Using integral calculus, determine the coach's braking distance.

v (t) = 25 - 5 t

at t = 0 , v = 20 m/s

Let the distance is s.

$s =\int v(t) dt\\\\s =\int (25 - 5t)dt\\\\s= 25 t - 2.5 t^2 \\$

Let at t = t, the v = 20

So,

20 = 25 - 5 t

t = 1 s

So, s = 25 x 1 - 2.5 x 1 = 22.5 m

3 0

2 years ago

What is the slope of the line represents by 5x-12y=24 -2 24/5 -12 5/12 How do you get the answer? Please epxlain

mrs_skeptik [129]

5x - 12y = 24 - it's a standard form of equation of a line

The slope-intercept form: y = mx + b

m - slope

b - y-intercept.

Convert the standard form to the slope-intercept form:

$5x - 12y = 24$ subtract 5x from both sides

$-12y=-5x+24$ divide both sides by (-12)

$y=\dfrac{5}{12}x-2$

Answer: $\boxed{\dfrac{5}{12}}$

4 0

3 years ago

Which of the following are ordered pairs for the equation y = 1/8x + 11

Anna11 [10]

Answer:

(0, 11) is a solution.

(8, 12) is a solution.

(16, 13) is a solution

(1, 89/8)

(2, 45/4)

Step-by-step explanation:

y = 1/8x + 11

for this equation....

y = (1/8) x + 11

let x = 0 get

y = 0 + 11 = 11

(0, 11) is a solution.

(8, 12) is a solution.

(16, 13) is a solution

(1, 89/8) because y = 1/8 + 11 = 1/8 + 88/8 = 89/8

(2, 45/4)

3 0

2 years ago

In a lottery, the top cash prize was $642 million, going to three lucky winners. Players pick five different numbers from 1 t

kramer

Answer:

$\frac{10}{53 \times 46 \times 26}$

Step-by-step explanation:

The probability of matching the number drawn on the gold ball is

$\frac{1}{46}$

The number of possible pairs of numbers from 1 to 53 is

$\binom{53}{2} = \frac{53 \times 52}{2} = 53 \times 26$

Choosing 5 numbers, you are choosing 10 different pairs:

$\binom{5}{2} = \frac{5 \times 4}{2} = 10$

Therefore the probability of correctly matching the drawn pair is

$\frac{10}{53 \times 26}$

Thus, the probability of winning (matching the pair AND the gold ball) is

$\frac{10}{53 \times 46 \times 26}$

4 0

2 years ago

Need help asap!!! (Question:What is 2/3 divided by 4/5? (Options: 2/3, 5/6, 1 1/5, 3 1/3

sattari [20]

This answer to your equation is 5/6

7 0

2 years ago

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