3 years ago

What is the equivalent expression to 7/5y.

Mathematics

1 answer:

-BARSIC- [3]3 years ago

4 0

Answer:

7 * 1/5y

Step-by-step explanation:

division is the same as multiplying it by the quantity under 1 so 7 times 1/5y is the equivalent expression

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System w/Elimination -2x-9y=-25 -4x-9y=-25

Lerok [7]

x=0 and y= $\frac{25}{9}$

Step-by-step explanation:

We need to solve the system by elimination and find values of x and y

$-2x-9y=-25\,\,\,(1)\\-4x-9y=-25\,\,\,(2)$

Subtract eq(1) and eq(2)

$-2x-9y=-25\,\,\,(1)\\-4x-9y=-25\,\,\,(2)\\+\,\,\,+\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,+\\---------\\2x=0\\x=0$

Now Multiply equation (1) by 2 and subtract with eq(2)

$-4x-18y=-50\\-4x-9y=-25\\+\,\,\,\,\,\,+\,\,\,\,\,\,\,\,\,\,\,\,\,\,+\\--------\\-9y=-25\\y=\frac{-25}{-9}\\y=\frac{25}{9}$

So, x=0 and y= $\frac{25}{9}$

Keywords: system by elimination

Learn more about system by elimination at:

#learnwithBrainly

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3 years ago

Which of the following values is a solution to the inequality? 12 – 5x > -8

olya-2409 [2.1K]

Answer:

x < 4

Step-by-step explanation:

12 – 5x > -8

Subtract 12 from each side

12-12 – 5x > -8-12

-5x> -20

Divide each side by -5, remembering to flip the inequality

-5x/-5 < -20/-5

x < 4

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3 years ago

What is 59+14+85+98 over 56 to the power of 3

Stells [14]

283136/1792 Is your CORRECT answer

3 0

3 years ago

-a = -24 Please explain

allsm [11]

This means a has a value of 24.

5 0

3 years ago

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Explain how to solve the equation and how to check the solution. 40 = 8y

Natalija [7]

Answer:

y=5

Step-by-step explanation:

8 x 5 = 40.

You can check the solution by doing this. 40 divided by 5 = ? 8.

3 0

3 years ago

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