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Oxana [17]
3 years ago
11

What is the value of the expression below?

Mathematics
1 answer:
sergejj [24]3 years ago
4 0

Answer:

  B  15 1/2

Step-by-step explanation:

It evaluates to ...

  7 + 12 -(3 1/2) = 15 1/2 . . . . matches selection B

_____

Your calculator can help you with questions like this.

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Step-by-step explanation:

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6 0
3 years ago
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8 is 25% of what number?
VLD [36.1K]

Answer:

32

Step-by-step explanation:

25% is the same as 1/4

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The ratio of 3 km to 1800 m is​
Ugo [173]
5 : 3


D1 = 3km = 3000 m (1km = 1000m)
D2 = 1800m


Ratio of D1:D2
=3000/1800
=1000/600 (dividing by 3)
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3 years ago
A 594-seat theater will sell tickets for $25 and $12 for a particular concert. Let x and y represent the number of tickets that
Gelneren [198K]

Answer:

36 a pop

Step-by-step explanation:

6 0
3 years ago
Change the fraction into an equivalent fraction with the denominator w2 + w – 20.
ZanzabumX [31]
Answer:
\frac{(w-3)(w-4)}{(w+5)(w-4)}

If we want to expand the brackets, the fraction would be:
\frac{w^2 - 7w + 12}{w^2 + w - 20}

Explanation:
First, we can note that:
w² + w - 20 can be factorized as follows:
w² + w - 20 = (w+5)(w-4)

The given expression already has a (w+5) in the denominator, therefore, all we need to do is multiply the denominator by (w-4)

Since we want the new fraction to be equivalent to the original one, therefore, as we multiply the denominator by (w-4), we will also multiply the numerator by (w-4) to ensure that the value of the fraction is unchanged.

Based on the above, the new fraction would be:
\frac{(w-3)(w-4)}{(w+5)(w-4)}

If we want to expand the brackets, the fraction would be:
\frac{w^2 - 7w + 12}{w^2 + w - 20}

Hope this helps :)
5 0
3 years ago
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