3 years ago

Use Euler's Formula to find the missing number.

Mathematics

1 answer:

Tom [10]3 years ago

4 0

Answer:

The answer is 14

Step-by-step explanation:

I just took the test and got it right

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77julia77 [94]

Answer:

y=2x-1

Step-by-step explanation:

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3 years ago

PR = 9x - 31 and QR = 43; find x

lesya692 [45]

PR=9(43)-31

PR=387-31

PR=356

I think that's the answer :)

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4 years ago

2c + 1 = -31.......................................

maksim [4K]

Answer:

c = -16

Step-by-step explanation:

2c = -32

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3 years ago

Read 2 more answers

An express train travels 80km/h from Ironton to Wildwood. A local train, traveling at 48km/h, takes 2 hours longer for the same

masha68 [24]

Answer:

They are 240 kilometers apart.

Step-by-step explanation:

This question can be solved using the following relation:

$v = \frac{d}{t}$

In which v is the velocity, d is the distance and t is the time.

An express train travels 80km/h from Ironton to Wildwood.

Here we have $v = 80, t = x$ . So

$v = \frac{d}{t}$

$80 = \frac{d}{x}$

$d = 80x$

A local train, traveling at 48km/h, takes 2 hours longer for the same trip.

This means that when $v = 48, t = x + 2[tex]. So[tex]v = \frac{d}{t}$

$48 = \frac{d}{x+2}$

Since $d = 80x$

$48 = \frac{80x}{x+2}$

Applying cross multiplication

$80x = 48(x + 2)$

$80x = 48x + 96$

$32x = 96$

$x = \frac{96}{32}$

$x = 3$

So the distance is:

$d = 80x = 80*3 = 240$

They are 240 kilometers apart.

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3 years ago

Kal decides to open a home-based cupcake business. His cost is an initial value of $10 in operating expenses plus $0.25 to make

pshichka [43]

Answer:

Step-by-step explanation:

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2 years ago