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dalvyx [7]
2 years ago
11

36-40. The probability that a fatal car accident is alcohol related is over 40%. The probability that a fatal accident happens a

t night is 5 times more than the probability that it happens during the day.
What should drivers do to stay safe on the road? Write a probability facts that is based in your real life events?​
Mathematics
1 answer:
Nataliya [291]2 years ago
4 0
Drivers should not drink and drive. I hope this helps if not hopefully someone helps out
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Please help..!!!!!!!
Morgarella [4.7K]

Answer:

E) (-4, -3)

Step-by-step explanation:

To use elimination, you need to have one variable in both equations that have the same coefficient. (The coefficient is the number attached to the variable). Both equations have "7y".

The way elimination works is by eliminating one of the variables first. Decide how (-7y) and (-7y) can cancel out and become 0. You can either add or subtract.

(-7y) - (-7y)        Try subtracting

= (-7y) + 7y

= 0

Based on this, we should subtract the whole equations.

Set up the equations like normal subtraction. Then, subtract each of the terms that have the same variable.

.   4x - 7y = 5

<u>-   9x - 7y = -15</u>       Do 4x - 9x = -5x.    -7y - (-7y) = 0.      5 - (-15) = 20.

.    -5x - 0 = 20       "y" cancelled out

.          -5x = 20          Isolate 'x'

.      -5x/-5 = 20/-5       Divide both sides by -5

.              x = -4          Solved x-coordinate

Substitute 'x' for -4 in any of the equations. Then simplify and isolate "y" to solve for the y-coordinate.

4x - 7y = 5

4(-4) - 7y = 5         Simplify the multiplication.

-16 - 7y = 5         Start isolating 'y' now

-16 + 16 - 7y = 5 + 16         Add 16 to both sides. Left side cancels out 16

-7y = 5 + 16         Solved right side by adding

-7y = 21

-7y/-7 = 21/-7         Divide both sides by -7

y = -3              Solved y-coordinate

Therefore the answer is (-4, -3).

5 0
3 years ago
The following cylinder has a height of 7.2 and diameter of 6.8.
Leni [432]

Answer:

261.3cm3

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
If a 2-kg block compresses a spring 800mm from its relaxed state, how much potential energy does the block have due to the sprin
Tju [1.3M]

Answer:

8 Joule

Step-by-step explanation:

Mass of block = 2 kg

Displacement = x = 800 mm = 0.8 m

Spring constant = k = 25 N/m

Potential Energy of a spring

Work done = Difference in Potential Energy

Work Done = Δ P.E.

\Rightarrow \Delta\ P.E.=\frac{1}{2}kx^2

⇒P.E. = 0.5×25×0.8²

⇒P.E. = 8 Nm = 8 Joule

Here already the spring constant and displacement is given so the mass will not be used while calculating the potential energy.

5 0
2 years ago
A²-a² what is the answer​
san4es73 [151]

Answer:

a² - a² = 0

hope it helps

7 0
3 years ago
Read 2 more answers
What is the volume of this rectangular prism? 5 4 cm 4 3 CT | C 3 5 cm cm​
padilas [110]
(5/4)•(4/3)•(3/5)

So you multiply all of them basically
8 0
1 year ago
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