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Anton [14]
3 years ago
8

The ratio of books to magazines at jess house is 5:3 they are 21 magazines at jess house how many books are there?

Mathematics
2 answers:
TiliK225 [7]3 years ago
6 0
First, 5/3 = 1.6
21 x 1.6 = 34.99999999
But, when I put it in a calculator, the 1.6 was repeated so:
Round 34.99999999 to 35
35 books
mrs_skeptik [129]3 years ago
3 0
It's the same as writing them as fractions
\frac{5}{3} = \frac{x}{21}
x= books

Cross multiply.
5×21
And
3×x

105 = 3x
divide 3 on both sides

x=35
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The right answer is “The classroom has 5,180 seats “
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3 years ago
Erika worked 14 hours last week and 20 hours this week. If she earns $9 per hour, how much did she earn during these two weeks?
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Let f(x) = 4x + 3 and g(x) = -2x + 5. Find fog 5
Oxana [17]

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6 0
3 years ago
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A shopkeeper bought some eggs at ¢15 each. Six of them were broken while the rest were sold at ¢20 each. If he made a profit of
zvonat [6]
In the given problem it is already stated that the cost of each eggs is 15 cent. Out the total eggs bought 6 were broken. The rest of the eggs were sold for 20 cents each and the profit made was $4.80.
Cost of the 6 broken eggs = (6 * 0.15)
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Then we can write the equation as
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0.05x = 4.80 - 0.9
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x = 3.9/0.05
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So the number of eggs bought by him is 78
6 0
3 years ago
Simplify each expression
Hatshy [7]

Answer:

<h3>3. \:  \: ( \frac{7}{8} ) ^{2}  =  \frac{ {7}^{2} }{ {8}^{2} }  =  \frac{49}{64}  = 0.765</h3>

5. \:  \: 8 + 5(7) = 8 + 35 = 43

I hope I helped you^_^

3 0
3 years ago
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