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3 years ago

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Please help me with these 2 answers!

2 answers:

fgiga [73]3 years ago

4 0

7 is 71+7/3+78
8 is 60x2x2

snow_lady [41]3 years ago

3 0

Answer:

Answer 1: b. $104

Answer 2: b. $240

Step-by-step explanation:

Answer 1 explanation : Because he ended up with $71.00, the is no way he earned $64 or $13. He spent $7 on snacks, which means he would have had $78 then. But, he spent 1/4 of his money on the movie (not the snacks) so that means he would have more than $78 dollars to start with.

Answer 2 explanation: Because Jani spent half of her money on her bicycle, then and another half on a stereo set. That means she spent 1/4 of her money. Multiply 60 x 4, then you'll get 240.

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Least to greatest -20 7/20,7/28,20,20.75

horsena [70]

Answer:

-20 7/20, 7/28, 20, 20.75

Step-by-step explanation:

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3 years ago

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Mike and Beatrice purchase a house for $200,000. If the equation V = 200,000(1.03)x represents the value of the house after x ye

notsponge [240]

X=((log(225000/200000)/log(1.03))
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3 years ago

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Use decimals and fractions in the same equation showing the Commutative Property. Repeat for the Associative Property.

Anna71 [15]

For Commutative Property of Addition

Let us take a decimal number $2.14$ and a fraction $\frac{5}{20}$

Now, according to the Commutative property of Addition:

For any two numbers $a$ and $b$ :

$a+b = b+a$

So, for $2.14$ and $\frac{5}{20}$

Let us add

$2.14+\frac{5}{20} = \frac{214}{100} +\frac{5}{20}$

$=\frac{214}{100} + \frac{5 \times 5}{20 \times 5} \\ \\=\frac{214}{100} + \frac{25}{100} \\ \\= 2.14 + 0.25 \\ \\ = 2.39$

Also,

$\frac{5}{20} + 2.14 = \frac{5}{20} + \frac{214}{100}$

$= \frac{5 \times 5}{20 \times 5} +\frac{214}{100} \\ \\= \frac{25}{100} + \frac{214}{100} \\ \\= 0.25 + 2.14 \\ \\ = 2.39$

Therefore, $2.14+\frac{5}{20} = \frac{5}{20} + 2.14$

Hence, Commutative Property of Addition is satisfied.

For Associated Property of Addition

Let us take two same decimal numbers $2.14$ , $7.25$ and a fraction $\frac{5}{20}$

Now, according to the Associated property of Addition:

For any three numbers $a$ , $b$ and $c$

$a + (b+c) =(a+b) + c$

So, for $2.14$ , $7.25$ and $\frac{5}{20}$

The Left hand side:

$a + (b+c)$

$2.14 + (7.25 + \frac{5}{20}) = 2.14 + (\frac{725}{100} + \frac{5 \times 5}{20\times 5})$

$= 2.14 + (\frac{725}{100} + \frac{25 }{100})$

$= 2.14 + (\frac{750}{100} )$

$= \frac{214}{100} + \frac{750}{100}$

$= \frac{964}{100}$

$=9.64$

The Right hand side:

$(a + b )+c$

$(2.14 + 7.25 )+ \frac{5}{20}= ( 9.39 ) + \frac{5 }{20}$

$= 9.39 + \frac{5 \times 5 }{20 \times 5}$

$= 9.39 + \frac{25}{100}$

$= 9.39 + 0.25$

$= 9.64$

Thus,

$(2.14 + (7.25 + \frac{5}{20} )= (2.14 + 7.25 )+ \frac{5}{20}$

Therefore, $2.14+\frac{5}{20} = \frac{5}{20} + 2.14$

Hence, Associative Property of Addition is satisfied.

8 0

3 years ago

-5(-3)(-3) what the product

sukhopar [10]

Answer:

Step-by-step explanation:

(-5) * (-3) * (-3) = -5 * -3 * -3 = 15 * -3 = -45

5 0

3 years ago

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Will someone help me with this please

ANEK [815]

the first answer choice, associative property of addition

hope this helps. gl!

8 0

3 years ago

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