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riadik2000 [5.3K]

2 years ago

5

The momentum of a 10,000kg train traveling east is 150,000 kg m/s east. What is the velocity? I just need the answer no work nee

ded

1 answer:

katovenus [111]2 years ago

7 0

Answer: 15 m/s

Step-by-step explanation:

momementum = mass x velocity

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HELP WITH NUMBER 13 please

amid [387]

Answer: QE = 10

Step-by-step explanation: To solve this problem, it's important to understand that the diagonals of a parallelogram bisect each other.

This means that E is the midpoint of diagonal SQ.

So we can setup the equation x² + 9x = 4x + 6.

To solve this polynomial equation, set it equal to zero first.

So we have x² + 5x - 6 = 0 and we get (x + 6)(x - 1) = 0

when we factor the left side of the equation.

So this means that x = -6 or x = 1.

However, -6 will give us a negative length when we plug it in

to find QE so this will not work.

However, plugging 1 in will give us 10 as a length so QE = 10.

4 0

2 years ago

Refer to the figure to complete the proportion

MariettaO [177]

I hope this helps you

6 0

3 years ago

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Can someone please help me with this one? Tysm! ^^

lana [24]

2/3 x 3/4 =6/12=1/2
(Multiply numerators, multiply denominators, simplify)

4 0

3 years ago

Name a combination of coins that is 65% of the value of a dollar. (SHOW LIst of combination<br>

svet-max [94.6K]

We need a combination of coins that equal 65 cents.

The easiest one is 13 nickels.

Another combination is 6 dimes and 1 nickel.

A third is 2 quarters, 1 dime, and 1 nickel.

The list goes on.

---

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3 years ago

A car dealership earns a portion of its profit on the accessories sold with a car. The dealer sold a Toyota Camry loaded with ac

lina2011 [118]

Answer:

y = 2666.67

Step-by-step explanation:

Well to solve this we can make a system of equations.

x = cost of car alone

y = cost of accesories,

$\left \{ {{x+y=24000} \atop {x=8y}} \right.$

So now we plug in 8y for x in x + y = 24000.

(8y) + y = 24000

9y = 24000

Divide both sides by 9

y = 2666.666666

or 2666.67 rounded to the nearest hundredth.

Now that we have y we can plug that in for y in x=8y.

x = 8(2.666.67)

x = 21,333.33 rounded to the nearest hundredth.

<em>Thus,</em>

<em>accessories "y" cost around 2666.67.</em>

<em />

<em>Hope this helps :)</em>

6 0

3 years ago

Read 2 more answers