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mariarad [96]
3 years ago
12

2.8 ÷ -0.004. Please show work.

Mathematics
2 answers:
hichkok12 [17]3 years ago
6 0
The answer is -700

Change the divisor -0.004 to a whole number by moving the decimal point 3 places to the right. Then move the decimal point in the dividend the same, 3 places to the right.
Alexeev081 [22]3 years ago
5 0

Answer:

<h3>-700</h3>

Step-by-step explanation:

\frac{2.8}{-0.004}\\\\\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a}{-b}=-\frac{a}{b}\\\\=-\frac{2.8}{0.004}\\\\\mathrm{Divide\:the\:numbers:}\:\frac{2.8}{0.004}=700\\\\=-700

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Step-by-step explanation:

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A train travels 110 km in the same time that a plane covers 385 km. If the speed of the plane is 20 km per hr less than 4 times
slamgirl [31]

Answer:

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  • plane: 140 kph

Step-by-step explanation:

Let t represent the speed of the train in km/h. Then 4t-20 is the speed of the plane. Travel times are the same, so we can use the formula ...

  time = distance/speed

and equate the travel times.

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Cross multiplying gives ...

  110(4t -20) = 385t

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The train's speed is 40 km/h; the plane's speed is 140 km/h.

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<em>Check</em>

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Answer:

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E:  9

A:  1

R:  0

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From LHS,

Putting the value of Y,E, A and R in the given question we get

2222-999+11-0\\=\ 1223\ + 11\\=\ 1234

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4 years ago
If 79.5% of married couple households are both native and 13.2% are both foreign, then (a) what percentage of married couple hou
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Answer:

The correct solution is "7.3%".

Step-by-step explanation:

It seems that the given question is incomplete. Find below the attachment of the complete and appropriate query.

According to the question,

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