3 years ago

Is this equation true or false? 4(-5) = (-25)

Mathematics

1 answer:

aleksandr82 [10.1K]3 years ago

3 0

4*-5 is -20 is does not equal -25 so it’s false

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Step-by-step explanation:

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3 years ago

In a flight of 600 km, the speed of the aircraft was slowed down due to bad weather. The average speed of the trip was decreased

UkoKoshka [18]

The average speed would be 600 km/hr.

Step-by-step explanation:

Let the original speed be 'x'

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According to question, it becomes,

$\dfrac{600}{x-200}-\dfrac{600}{x}=\dfrac{30}{60}\\\\\dfrac{x-(x-200)}{x^2-200x}=\dfrac{1}{2\times 600}\\\\\dfrac{200}{x^2-200x}=\dfrac{1}{1200}\\\\240000=x^2-200x\\\\x^2-200x-240000=0\\\\x=600,-400$

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Inessa [10]

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4 years ago

If the sales price is 55.50, and the discount is 75%, what is the original price

yaroslaw [1]

Answer:

£74

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£55.50 = 75%

Find 1% of discounted price by dividing both sides by 75 :

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Check our answer :

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Hope this helped and brainliest please

4 0

2 years ago

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3 years ago

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