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barxatty [35]
3 years ago
8

0.5 of what number is 15

Mathematics
1 answer:
Alex3 years ago
6 0

Answer:

30

Step-by-step explanation:

0.5 *  unknown number = 15

but  

we see unknown number = 15 / 0.5 = 30

You might be interested in
Is 2.73234(34 repeating) rational or irrational?
Fittoniya [83]

It's rational because of the repeating digits.

We have

<em>x</em> = 2.732<u>343434</u>…

Then

1,000<em>x</em> = 2,732.343434…

and

100,000<em>x</em> = 273,234.343434…

Subtracting these makes the fractional part go away, leaving you with

100,000<em>x</em> - 1,000<em>x</em> = 273,234.343434… - 2,732.343434…

100,000<em>x</em> - 1,000<em>x</em> = 273,234 - 2,732

99,000<em>x</em> = 270,502

<em>x</em> = 270,502/99,000 = 135,251/49,500

which is clearly a rational number.

5 0
2 years ago
The equation C = 0.20x + 50 gives the cost C in dollars for renting a truck and
k0ka [10]

Answer:

0.20 dollars/mile

Step-by-step explanation:

The slope actually has units. It has the meaning of 20 cents per mile. The units are cents per mile.

But it can also be 0.20 dollars/mile which is probably the way you should interpret it in a math class. That way it matches the units of the 50 which is for certain in dollars.

5 0
3 years ago
How many solutions to the equation
ZanzabumX [31]
-15=-15
Since both sides equal, they are infinitely many solutions
D) infinitely many solutions
5 0
2 years ago
Factor out the greatest common factor. 10a3b−6a2b2
podryga [215]

Answer:

2a^2b(5a-3b)

If not then the other way is

5a-3b

Step-by-step explanation:

The GCF of 10a^3b and -6a^2b^2 is 2a^2b

So divide by that you will get

2a^2b(5a-3b)

4 0
3 years ago
Compared to the basic savings account
kolbaska11 [484]
I have a savings accout wit four dollars in it

6 0
3 years ago
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