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3 years ago

5.39 repeating decimal as a mixed number

Mathematics

2 answers:

Archy [21]3 years ago

7 0

Round 5.39999.....as 5.4
5 4/10, reduce which is 5 2/5

Troyanec [42]3 years ago

4 0

The answer is 5 39/100, we can't reduce it any further. Since, the 5 is the whole number, we write 5, then 39/100, because 39 the 9th is on the 100ths place, so we put 39/100

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3 years ago

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Which expression is equivalent to 7/10-2/10

ki77a [65]

Solution:

we have been asked to find

The expression is equivalent to $7/10-2/10$

we can simplify the given expression as below

$\frac{7}{10}-\frac{2}{10}=\frac{7-2}{10}\\ \\ \Rightarrow \frac{7}{10}-\frac{2}{10}=\frac{5}{10}\\ \\ \text{Simplify we get}\\ \\ \frac{7}{10}-\frac{2}{10}=\frac{1}{2}\\$

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3 years ago

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Use the substitution method to solve the system of equations. Choose the correct ordered pair. x + y = 11 -x = -y - 9

suter [353]

$x+y=11 \\
-x=-y-9 \\ \\
\hbox{substitute the second equation by -1} \\ \\
x+y=11 \\
x=y+9 \\ \\
\hbox{substitute y+9 for x in the first equation} \\ \\
y+9+y=11 \\
2y=11-9 \\
2y=2 \\
y=\frac{2}{2} \\
y=1 \\ \\
x=y+9 \\
x=1+9 \\
x=10 \\ \\
(x,y)=(10,1)$

The answer is B.

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3 years ago

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