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4 years ago

Choose the best answer that represents the property used to rewrite the expression.

Mathematics

1 answer:

balandron [24]3 years ago

7 0

Answer:

The Quotient Property.

Step-by-step explanation:

Since all three logarithms have the same base (base-5), and you are subtracting 6 and 3, to solve this all you need to do is 6 / 3 because of the Quotient Property.

You aren't multiplying anything, so you wouldn't use the Product Property.

You are not messing around with powers, so you wouldn't use the Power Property.

And you aren't using addition or multiplication, so you wouldn't use the Commutative Property.

Hope this helps!

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Linda purchased a prepaid phone card for $30. Long distance calls cost 17 cents a minute using this card. Linda used her card on

Vedmedyk [2.9K]

Answer:

23 minutes

Step-by-step explanation:

First, take away $26.09 from $30. This will show you how much was spent on the call. You should get $3.91.

Next, it may be easier to convert this total all to cents. So 100 cents in every dollar...100 cents times 3 = 300 cents. Then add the other 91 cents to get a total of 391 cents.

Then, you need to divide 391 cents by 17 to get the minutes. And you'll get 23 minutes!

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4 years ago

I need help is it A B C or D

amid [387]

I think it might be B, not 100%

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3 years ago

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Given the system of equations, what is the solution?5x - 4y = 7x = 5 - 3/2y

nignag [31]

9514 1404 393

Answer:

(x, y) = (61/23, 36/23)

Step-by-step explanation:

We assume you intend the equations to be ...

5x -4y = 7
x = 5 -3/2y

Then in general form, they are ...

5x -4y -7 = 0

2x +3y -10 = 0

The solution using the "cross multiplication method" is ...

1/(15 +8) = x/(40+21) = y/(-14 +50)

(x, y) = (61/23, 36/23)

_____

<em>Comment on "cross multiplication method"</em>

When the coefficients from the general form equations are written as a 2×4 array with the first and last columns the same ...

$\left\{\begin{array}{cccc}5&-4&-7&5\\2&3&-10&2\end{array}\right\}$

the solution is 1/d1 = x/d2 = y/d3, where d1, d2, d3 are the determinants of successive pairs of columns.

d1 = (5)(3) -(2)(-4)
d2 = (-4)(-10) -(3)(-7)
d3 = (-7)(2) -(-10)(5)

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3 years ago

In a class of 55 students, 15 students like Math but not English and 18 students liked English but not Math. If 5 students did n

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See the venn-diagram in the picture.

Hope this helps! Please consider marking me the Brainliest, it’s not necessary, but very much appreciated. Have a great day!

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3 years ago

Escape what is on sale for 60% off the regular $80 price what is the sales price

mylen [45]

Answer:

$32 is the sales price.

Step-by-step explanation:

First, change the percentage to a decimal.

60% = 60/100 = 0.6

Next, multiply 0.6 with the regular price ($80)

80 x 0.6 = 48

$48 is the discount. Subtract from the original price

80 - 48 = 32

$32 is the sales price.

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4 years ago

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