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3 years ago

Solve by elimination: 3x + 4y = 0 5x-3y = -58 (6, -8) B (-6, -8) C (-8, 6)

Mathematics

1 answer:

Lapatulllka [165]3 years ago

4 0

Answer:

The answer is (-8, 6)

if you click the image it will show you how to solve the equation. I hope this helps you.

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What is 40% as a whole number

maksim [4K]

% is a number over 100, so 40% is 40/100, which is 0.40.

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3 years ago

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Use the identity (x+y)(x−y)=x2−y2 to find the difference of two numbers if the sum of the numbers is 12 and the difference of th

Natalka [10]

Answer:

The difference of two numbers using identity $(x+y)(x-y)=x^2-y^2$ is 4.

Step-by-step explanation:

Given: The sum of the numbers is 12 and the difference of the squares of the numbers is 48.

To find the difference of two numbers using identity $(x+y)(x-y)=x^2-y^2$

Let the two numbers be a and b, then

Given that the sum of the numbers is 12

that is a + b = 12 .........(1)

Also, given the difference of the squares of the numbers is 48.

that is $a^2-b^2=48$ ..........(2)

Using given identity $(x+y)(x-y)=x^2-y^2$

We have $(a+b)(a-b)=a^2-b^2$

Substitute the known values, we have,

$12(a-b)=48$

Divide both side 12 , we have,

$(a-b)=4$

Thus, the difference of two numbers using identity $(x+y)(x-y)=x^2-y^2$ is 4.

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4 years ago

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The total cost of admission, A, to the circus for a group varies directly with the number of tickets purchased, t. If 3 tickets

Harman [31]

3t=105 and simplified is t=35

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3 years ago

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What is 1+1? I am very confused, is it 1, 0, or 3?

Yuri [45]

Answer:

1 + 1 = 2, if you are doing multiplication then it is 1 x 1 = 1

Step-by-step explanation:

8 0

3 years ago

Answer and question ok plss

ivolga24 [154]

Answer:

The answer is D(20)

Step-by-step explanation:

I don't know the exact algebraic explanation, however, this is how I did it.

$2^5+2^5=$ $2*2^5$

If you divide the second equation into seperate twos, you will get 2*2*2*2*2*2 = $2^6$

Therefore, $2^x=2^6$ meaning that x is equal to 6. Now The next bit is trial and error, 20-6=14. $3^{y} = 3^{14}$

Last thing to do is to add x+y=6+14. That is why the answer is 20.

If you wait a bit longer, someone will probably have a more algebraic explanation, however, you stated you only needed the answer so I hope this helped.

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3 years ago