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san4es73 [151]
3 years ago
7

A freight train travels 260 km in the same time a passenger train travels 320 km. If the passenger train averages 15km/hour fast

er than the freight train, what is the average speed of the freight?
Mathematics
1 answer:
JulsSmile [24]3 years ago
4 0
Time = t 

<span>vf t = 260 </span>
<span>vp t = 320 </span>
<span>so </span>

<span>260/vf = 320/(vf+15) </span>

<span>320 vf = 260 vf +260(15) </span>
<span>60 vf = 390 </span>
<span>3 vf = 39 </span>
<span>vf = 13 km/hour

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

</span>
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For the answer to the question above, I'll provide a solution to my answer below.
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5 0
3 years ago
Read 2 more answers
How can $500 be divided between four people so that each person gets $20 more than the person before.
MA_775_DIABLO [31]

Answer:

$95, $115, $135, $155

Step-by-step explanation:

If the first person gets x dollars:

the next person gets 20 more, so x + 20 dollars

the next person gets x + 40 dollars

and the last person gets x + 60 dollars

We add all these allocations together, and we get $500

x + (x + 20) + (x + 40) + (x + 60) = 500

Combine like terms

4x + 120 = 500

Subtract 120 on both sides

4x = 380

Divide by 4 on both sides

x = 95

So the first person gets $95.

The second person must get $115

The third must get $135

And the fourth must get $155

Checking our work:

95 + 115 + 135 + 155 = 500

5 0
3 years ago
(9+8)+6/3-7×2 how to slove
tino4ka555 [31]

Answer:5

Step-by-step explanation: remeber pemdas

first we do parenthesies(I have bad spelling)

17+6/3-7*2

then we do multiplication and divition, it matters what comes first

17+2-7*2

17+2-14

5

8 0
3 years ago
50% of the apartments in a certain building have windows and hardwood floors. 25% of the apartments without windows have hardwoo
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Answer:E 83\frac{1}{3}

Step-by-step explanation:

50% of the apartment in a certain building have windows and hardwood floors.

25% of the remaining 50% apartment without window have hardwood floors.

40% of the apartment do not have hardwood floors i.e. 60 % have hardwood floor

Therefore percent of the apartments with windows have hardwood floors is

=\frac{50 percent of total\ apartment }{60\ percent\ of\ apartment}

=83\frac{1}{3}%

6 0
3 years ago
Consider a triangular prism. The triangular end has a base of 4 cm and height of 5 cm. The length of each side is 6 cm and the h
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3 years ago
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