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bonufazy [111]
3 years ago
10

The book fair a sale where 4 books were $31.36.If you wanted to buy 3 books, how much money would you need

Mathematics
2 answers:
mote1985 [20]3 years ago
8 0

Answer:

$23.52

Step-by-step explanation:

So first you would have to find how much each one would be if you were buying one individual book.  For that you would do 31.36/4 to get $7.84.  Then since you found that for only 1 book, you would need to multiply that by 3 to get $23.52

Alexandra [31]3 years ago
5 0

Answer:

<em>oof. i am not good at these.</em>

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One gram of water has a volume of 1 millimeter. What is the volume of the water if it has a mass of 1 kilogram
Zinaida [17]
There are 1,000 grams in a kilogram. 
Each gram of water has a volume of 1 milliliter (the question said millimeter but that measures length and I think it was meant to say milliliter). 
Since there are 1,000 grams with a volume of 1 millimeter each, the volume is 1,000 milliliters, which is equal to 1 liter. 
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8 0
3 years ago
100 pts Eight stuffed animals need to be arranged in a line. There is one bear and one zebra. What is the exact probability that
shtirl [24]

Answer:

1/56

Step-by-step explanation:

P( bear  is first) = bear/ total = 1/8

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3 years ago
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Simplify the expression. (3x/y)^-3
AysviL [449]

Answer:

y^3/(27 x^3)

Step-by-step explanation:

Simplify the following:

((3 x)/y)^(-3)

((3 x)/y)^(-3) = (y/(3 x))^3:

(y/(3 x))^3

Multiply each exponent in y/(3 x) by 3:

(y^3)/((3 x)^3)

Multiply each exponent in 3 x by 3:

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3^3 = 3×3^2:

y^3/(3×3^2 x^3)

3^2 = 9:

y^3/(3×9 x^3)

3×9 = 27:

Answer:  y^3/(27 x^3)

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F the simple interest on ​$4000 for 6 years is ​$1440​, then what is the interest​ rate?
Alborosie

Answer:

Step-by-step explanation:

rate=\frac{interest \times 100}{principle \times time } \\=\frac{1440 \times 100}{4000 \times 6 } \\=6 \%

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3 years ago
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