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4 years ago

I REALLY NEED HELP

Mathematics

1 answer:

Sergeeva-Olga [200]4 years ago

8 0

Answer:

$x=3$
$y=4/3$

Step-by-step explanation:

Substitute $6y-5$ into $2x-3y=2$

From here, you can solve for y.

Once you know y, you can substitute that in $x=6y-5$

Solving, you should get $x=3$

Hope this helps!!!!

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Michelle wants to run a total of 15 miles per week. She runs 3 miles

m_a_m_a [10]

Answer:

Yes because 3x5 is 15

Step-by-step explanation:

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3 years ago

The Frederick County Fair costs $15.00 to get in and $2.50 per ride, while

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5 0

4 years ago

UGHH I always get stuck on solving these system of equations, help me?!

ASHA 777 [7]

First one:
2x + y = -7-1
2x + x + 10 = -8
3x + 10 = -8
3x = -18
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7 0

4 years ago

F(x)=-x^2+1 find f(-3)

Serjik [45]

Answer:

-8

Step-by-step explanation:

All you have to do to solve this equation is plug "-3" into the equation where you see "x"

$f(x)=-x^2+1\\f(-3)=-(-3)^2+1\\f(-3)=-(9)+1\\f(-3)=-9+1\\f(-3)=-8$

4 0

3 years ago

Help.....................

eduard

Answer:

Answers in Explanation

Step-by-step explanation:

First Question:

$\sqrt{100}$ + [18 ÷ 3 x 4 - 15] - (60 - 7^2 - 1)

$\sqrt{100}$ + [24 - 15] - (60 - 49 - 1)

$\sqrt{100}$ + 9 - 10

10 + 9 - 10

Answer = 9

Second Question:

5x + 2x = 7x

5x^2 + 3x^2 = 8x^2

2x + 3x - x = 4x

2x + 3y + x + y = 3x + 4y

9x - 6x = 3x

-7y + 3x + 4x + 3y = 7x - 4y

-7x^2 + 2x^2 + 9x^2 = 8x^2

(3x^2 + 5x + 4) - (-1 + x^2) = 2x^2 + 5x + 5

(3 + 2x - x^2) + (x^2 + 8x + 5) = 10x + 8

(3x - 4) - (5x + 2) = -2x - 6

(2x^2 + 5x + 3) - (x^2 - 2x + 3) = x^2 + 7x

(3x^2 + 2x - 5) - (2x^2 - x - 4) = x^2 + 3x - 1

Third Question:

17x + 2y

(5x + 12y) + (3x + y) = 8x + 13y

17x - 8x = 9x

2y - 13y = -11y

Answer: 9x - 11y

7 0

3 years ago