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3 years ago

Which method is best using this equation 4x-2y=-2,-5x+6y=-15 and why

1 answer:

8 0

I think that using the elimination method is the best, because it is the only method that I use when solving these types of equation. For example, for these two equations, you need to multiply one of the equations by a certain number so that you'd be able to find x and y. The elimination method is the method that tells you to do that. It is also the easiest method.

~Hope I helped!~

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A company that sells cds spends 250$ dollars per week leading office space. The cds cost $3.75 each to produce and are sold for

belka [17]

Answer:

129 cds.

Step-by-step explanation:

Given:

A company that sells cds spends 250$ dollars per week leading office space.

The cds cost $3.75 each to produce and are sold for $17.75 each.

Question asked:

How may cds must the company produce and sell each month to make a profit of at least $806 each month?

Solution:

As given:

Cost price of each cds = $3.75

Selling price of each cds = $17.75

Profit of each cds = 17.75 - 3.75 = $14

A company spends per week leading office space = $250

As we know: 1 month = 4 week

A company will spend each month leading office space = $4\times250=\$1000$

A company make a profit each month of at least = $806

Therefore, he must earn by selling the cds each month = 1000+806=$1806

Now, to find the number of cds, the company must produce, we will divide the total earning each month by each cds profit:-

$\frac{1806}{14} =129\ pieces \ of \ cds$

Therefore, 129 cds must be produced and sold each month by the company.

3 0

3 years ago

In one month Karissa earned $600 at her part-time job, and $50 was withheld for federal income tax. Suppose she earns $900 next

Veseljchak [2.6K]

Don't get me wrong, I am not exactly sure but I believe it is supposed to be 75$.

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2 years ago

How to write numbers in two other forms ? 6,007,200

Lena [83]

in words: six million, seven thousand two hundred or in scientific notation: 6.0072 x 106in expanded form: 6 000 000 + 0 + 0 + 7000 + 200 + 0 + 0

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3 years ago

Which of the following angles is not coterminal with the other three? Question 15 options: 231° 51° –129° 591°

mart [117]

Answer:

Step-by-step explanation

Given angles can break like this :

231 = 180 +51

51= 0+51

-129= -180+51

591= 360+180+51

so angles 231, -129 and 591 corresponds to the same terminal while 51 is not related to the particular quadrant . so 51 is not co-terminal with the other three angles .

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kolbaska11 [484]

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2 years ago