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umka2103 [35]
3 years ago
12

tom took a trip of 1,020 miles. he traveled by train at 55 miles an hour and the same number of hours by plane at 285mph how man

y hours did the trip take?
Mathematics
1 answer:
Kamila [148]3 years ago
8 0
D = vt

Distance traveled by train
d = 55t
Distance traveled by plane
d = 285t
Total distance
d = 1020

So, you do:
distance traveled by plane + distance traveled by train =  total distance
(55t) + (285t) = 1020

Solve for t
t = 3 hours

t is the time traveled by each so 3 hrs traveled by train and 3 hrs traveled by plane

Total time  = 3 + 3 = 6 hours







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2 years ago
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P(A) = 1/2<br> P(B) = 1/3<br> PIAN B) = 1/6<br> Find P(AUB)
Oksi-84 [34.3K]

P(A\cup B)=P(A)+P(B)-P(A\cap B)

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3 years ago
Which expression is equivalent to -3(2m-1)-n
ZanzabumX [31]
<span>-3(2m-1)-n

First we multiply -3 to the first term of the expression

---------- > ( -3*2m + (-3)*(-1) ) - n

</span>---------- > ( -6m + 3 ) - n<span>

-----------> -6m -n + 3

Then, we divide and multiply by -6, (the expression remains the same)

</span>
---- > (-6/-6)* (-6m -n + 3)<span>

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</span>
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ira [324]

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Percent: 140, 275, 0.08

Fraction: 16/25, 1 2/5, 2/25

Decimal: 0.64, 12.5, 0.125, 2.75

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6 0
2 years ago
The function h(x)=1/x^2+1 is the result of the composition f(g(x)). If g(x) = x^2+1,what is f(x)? A f(x)=1/square root x B f(x)=
HACTEHA [7]

Answer:

Option B is correct

Step-by-step explanation:

Given: h(x)=\frac{1}{x^2+1} is the result of the composition f(g(x)).

Also, g(x)=x^2+1

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Solution:

Take f(x)=\frac{1}{x}

Now check whether h(x) is equal to f(g(x)) or not.

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Also, h(x)=\frac{1}{x^2+1}

Therefore,

h(x)=f(g(x))

So,

Option B is correct

3 0
3 years ago
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