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Natasha2012 [34]

3 years ago

5

Express 31/10 as a mixed number

2 answers:

Sphinxa [80]3 years ago

6 0

Answer is equal to 3 and 1/10

Vlada [557]3 years ago

4 0

3 1/10 because 10 can go into it 3 times

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Rewrite this radicand as two factors, one of which is a perfect square.

seropon [69]

Answer:

$2 \sqrt{15}$

Step-by-step explanation:

1) rewrite 60 as it's prime factors.

$\sqrt{2 \times 2 \times 3 \times } 5$

2) group the smae prime factors into pairs.

$\sqrt{(2 \times 2)} \times 3 \times 5$

3) Rewrite each pair in exponent form.

$\sqrt{ {2}^{2} \times 3 \times 5 }$

4) use this role:

$\sqrt{ {x}^{2} } = x$

$2 \sqrt{3 \times 5}$

5) Simplify.

$4 \sqrt{15}$

So, therefor, the answer is option 1.

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3 years ago

Miguel has triple David's money, while Lisbeth has ten dollars less than David. The sum of their money totals $95. How much mone

ahrayia [7]

Answer:

Miguel has $63

Lisbeth has $11

David has $21

Step-by-step explanation:

let Miguel share be M

let Lisbeth share be L

let David share be D

from the question, we know that

M=3D

L=D-10.

M+L+D=95

thus,

3D+(D-10)+D= 95

3D+D-10+D= 95

5D-10 = 95

5D= 95+10

5D= 105

D= 105/5

D= 21.

thus,

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L = D-10 = 21-10

= $11

(63+21+11)$ = $95

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It is about 41.4% according to my TI-83/84 calculator.

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Answer:d

Step-by-step explanation:

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