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IgorLugansk [536]
3 years ago
13

Two trains leave the city going opposite​ directions, one going north and the other going south. The northbound train is traveli

ng mph slower than the southbound train 14. After 3 hours the trains are 498 miles apart. Find the speed of each train
Mathematics
1 answer:
son4ous [18]3 years ago
8 0
I wish i could help u
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Can someone please help me? Extra points!! Thank you in advance!! :) (btw it is NOT “B”, I have already tried B and it is incorr
lilavasa [31]

Answer:

The answer is compressed horizontally I think

4 0
3 years ago
A CD usually sells for $12.00. If the CD is 20% off, and sales tax is 7%, what is the total price of the CD, including tax?
vredina [299]
$12 x .20 = $2.40 

12 - 2.40 = $9.60

$9.60 x .07 = $0.67 

$9.60 + $0.67 = $10.27 

Total price (including tax): $10.27 
3 0
4 years ago
I just need help to solve these steps.
My name is Ann [436]
I dont think the answer is 129 unless you typed the problem in wrong. Order of operations say to do everything inside the perenthesis first so you would do the 3*2 which is 6 then divide the 12 by 6 and you get 2. so your new equation is 8^2+9(2)-7. Next distribute the 9 to the 2 that is inside the perenthesis. Square root the 8 also. Now it is 49+18-7. The answer would be 60 ...?

6 0
3 years ago
I need to know if this H(3,2),J(4,1),K(-2,-4),M(-1,-5) is parallel perpendicular or neither I need to show my work and write my
Shkiper50 [21]

Answer:

Step-by-step explanation:

H(3,2)  & J(4, 1)

Slope = \dfrac{y_{2} -y_{1}}{x_{2}-x_{1}}\\\\=\dfrac{1-2}{4-3}\\\\\\=\dfrac{-1}{1}\\\\= -1

K(-2,-4)  & M(-1 , -5)

Slope =\dfrac{-5-[-4]}{-1-[-2]}\\\\=\dfrac{-5+4}{-1+2}\\\\= \dfrac{-1}{1}\\\\\\= -1

Line HJ and KM have same slopes. So, they are parallel

6 0
3 years ago
A researcher surveyed 80 adults and found that 22 regularly run for exercise and 18 regularly swim for exercise.
Aliun [14]
Whenever the questions asks for the probability and has "or" you have to add the two probabilities. In the same way, "and" implies multiplication. Therefore, the probability that someone swims is:
\frac{18}{80} =  \frac{9}{40}

Probability that someone runs:
\frac{22}{80} =  \frac{11}{40}

Thus, if you add them:
\frac{9}{40} +  \frac{11}{40} =  \frac{20}{40}  =  \frac{1}{2}

So, the probability that someone swims <em>or</em> runs is 1/2 or 50%.
6 0
3 years ago
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