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3 years ago

-3s -5=4 what is this problem

2 answers:

8 0

-3s-5=4 First add 5 to both sides of the equal sign to cancel out -5
+5 +5 You're left with -3s=9

-3s=9 Divide by -3 on both sides. This cancels out the -3s. 9 divided by -3 equals -3. The answer would be s=-3

loris [4]3 years ago

5 0

-3s-5=4
-3s=4+5
-3s=9
s=9/-3
s=-3

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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

Find the value of for 3x-6x+14 4x-4

Dvinal [7]

Answer: 32

Step-by-step explanation:

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2 years ago

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kap26 [50]

Answer:

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Step-by-step explanation:

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Read 2 more answers

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Answer:

Step-by-step explanation:

Try testing each graph by picking a point on the shaded region or none shaded region.

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gavmur [86]

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By Factor Theorem, (x + 3) is a factor of H(x) if and only if H(-3) = 0.

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