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3 years ago

Describe how to write 3,482,000,000 in scientific notation in words

1 answer:

3 0

Take all the non-zero digits and separate them from the zeros.
Then with zeros, how many are there?
Then multiply non-zero digits and zeros in powers.
3.482 * 10^6

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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.

3 0

3 years ago

Wering a one-step expression for a real-world situation

Crazy boy [7]

Answer:

4d (the variable is usually x, though).

Step-by-step explanation:

Because 4 x the amount of fish in each tank = total amount of fish

8 0

3 years ago

What is 50.00 simplified

stira [4]

Answer:

Step-by-step explanation:

cause you just take away the decimals and its alreasy a whole number

3 0

2 years ago

The pencil factory can sort 165 pencils into boxes in 1

prohojiy [21]

Answer:

237600

Step-by-step explanation:

do 165 x 1440

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3 years ago

In right triangle ∆ABC, ∠A=36°. Find the measure of the other acute angle: ∠B. 54° 64° 24° 36°

vlabodo [156]

(36+90)+C=180
126+C=180
C=180-126
=54
Answer=54

6 0

3 years ago

Read 2 more answers