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3 years ago

Is 0.63 a rational number

Mathematics

2 answers:

jasenka [17]3 years ago

5 0

Answer:

It is a rational number because it can be expressed as a fraction in the form of 7/11 explanation:

kolbaska11 [484]3 years ago

3 0

Yes it is a rational number because we can write this in the form of p/q we can write 0.63=63/100

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8 grams = milligrams

Digiron [165]

Answer:

8,000 miligrams

Step-by-step explanation:

There's 1000 milligrams in a gram so you would have to do multiplication.

which if you do..

8x1000

you should get...

8000 milligrams

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3 years ago

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a 240 centimeter board is to be cut into two pieces so that the longer piece is twice as long as the shorter piece. find the len

amid [387]

You need two pieces and 1 has to be 2x longer than the other
set x as the smaller piece (easier to always go with the smaller value as x)
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3 years ago

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Otrada [13]

Answer:

The boat traveling at 24 kph when John goes downstream.

Step-by-step explanation:

We are given the following in the question:

John has a boat that will travel at the rate of 15 kph in still water.

Let x be the speed of the current.

Speed of boat in upstream

$(15-x)\text{ kph}$

Speed of water in downstream

$(15+x)\text{ kph}$

Relation:

$\text{Speed} = \dfrac{\text{Distance}}{\text{Time}}$

We have to find the speed of boat in downstream.

Time to travel upstream for 35 km = Time to travel 140 km downstream

$\displaystyle\frac{35}{15-x}=\frac{140}{15+x}\\\\35(15+x) = 140(15-x)\\525 + 35x = 2100 - 140x\\175x = 1575\\x = 9$

Thus, speed of current is 9 kph.

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Thus, the boat traveling at 24 kph when John goes downstream.

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3 years ago

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Bad White [126]

Answer:

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Step-by-step explanation:

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18t -54t = 18 + 27

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Divide through by -36

t = -1.25

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3 years ago

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igor_vitrenko [27]

Answer:

5 SQUAURED

Step-by-step explanation:

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1 year ago