3 years ago

What value of x makes this equation true?

Mathematics

1 answer:

Alex73 [517]3 years ago

4 0

Answer:

$x=9/4=2.25$

Step-by-step explanation:

The model is essentially saying:

$3(-x)+10(1)=5(x)+8(-1)$

Simplify:

$-3x+10=5x-8$

Subtract 5x from both sides:

$-8x+10=-8$

Subtract 10 from both sides:

$-8x=-18$

Divide both sides by -8. The negatives cancel:

$x=18/8$

Reduce:

$x=9/4=2.25$

And we're done!

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Igoryamba

Answer:

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Step-by-step explanation:

Speed of Jim, v = 18 km/h

Time, t = 2 hours

We need to find the distance covered. We know that the speed of an object is equal to the distance covered by it divided by total time taken.

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So, he will cover 36 km.

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2 years ago

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Vitek1552 [10]

Answer:

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Step-by-step explanation:

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2 years ago

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Final Result :

x - 3y

Processing ends successfully

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2 years ago

The hours of daylight,y, in Utica in days, x, from January 1, 2013 can be modeled by the equation y=3.06sin(0.017x-1.40) + 12.23

defon

The month of January has 31 days, so from January 1st to February 14th, there are 31 + 14 or 45 days, namely x = 45.

y = 3.06 * sin[ 0.017(45) - 1.40 ] + 12.23.

make sure your calculator is in Degree mode.

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3 years ago

Read 2 more answers