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Klio2033 [76]
2 years ago
8

Which ordered pairs are solutions to the equation 5x+7y=6

Mathematics
2 answers:
kompoz [17]2 years ago
8 0
5x+7y=6
5x+7y=6
12x+y=0
Hope it helps
svetlana [45]2 years ago
4 0

Answer:

cdzcz

Step-by-step explanation:

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Slav-nsk [51]

Answer:

e

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
What is the solution to 3(–3x + 9) = −18?
Rus_ich [418]

Answer:

x = 5 (If solved algebraically)

No Solution (If the parentheses are absolute value lines)

Step-by-step explanation:

Result when solving this way: 3|-3x + 9| = -18

1) Divide both sides by 3
|-3x + 9| = -18/3

2) Simplify 18/3 to 6

|-3x + 9| = -6

3)  Break down the problem into these 2 equations.

-3x + 9 = -6

- (-3x + 9) = -6

4) Solve the 1st equation: -3x + 9 = -6

- Subtract 1 from both sides.

-3x = -6 - 9

-Simplify -6 - 9 to -15.

-3x = -15

-Divide both sides by -3.

x = -15/-3

- Two negatives make a positive.

x = 15/3

- Simplify 15/3 to 5.

x = 5

6)  Solve the 2nd equation:  - (-3x+ 9) = -6

1 - Remove parentheses

3x - 9 = -6

2 - Add 9 to both sides

3x = -6 + 9

3 - Simplify -6 + 9 to 3.

3x = 3

- Divide both sides by 3.

x = 1

6) Collect all solutions.

x = 1,5

7) Check solution.

When x = 1, the original equation 3|-3x + 9| = -18 does not hold true.

We will drop x = 1 from the solution set.

8) Check solution.

When x = 5, the original equation 3|-3x + 9| = -18  does not hold true.

We will drop x = 5 from the solution set.

9) Therefore,

No solution exists.

Result when solving algebraically:

Simplifying

3(-3x + 9) = -18

Reorder the terms:

3(9 + -3x) = -18

(9 * 3 + -3x * 3) = -18

(27 + -9x) = -18

Solving

27 + -9x = -18

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-27' to each side of the equation.

27 + -27 + -9x = -18 + -27

Combine like terms: 27 + -27 = 0

0 + -9x = -18 + -27

-9x = -18 + -27

Combine like terms: -18 + -27 = -45

-9x = -45

Divide each side by '-9'.

x = 5

Simplifying

x = 5

5 0
1 year ago
What is i + 6i? You have to simplify
marissa [1.9K]

i=1i\\\\i+6i=1i+6i=(1+6)i=\boxed{7i}

3 0
3 years ago
Find the volume of this figure. Round to the nearest hundredths. The image shows a sphere with a radius of 8m.
Nastasia [14]

The volume of the given figure is 2,144.60 cubic m.

Step-by-step explanation:

Step 1:

The given sphere has a radius of r=8 m.

The volume of a sphere is given by multiplying \frac{4}{3} with π and the cube of the radius (r³).

The volume of a full sphere =\frac{4}{3} \pi r^{3}.

Step 2:

Here the radius is 8 m. We take π as 3.1415.

The volume of a full sphere =\frac{4}{3} \pi r^{3} = \frac{4}{3} (3.1415)  (8^{3}) = 2,144.5973 cubic m.

The volume of the sphere is 2,144.5973 cubic m, rounding this off, we get the volume as 2,144.60 cubic m.

6 0
3 years ago
Alaina sugar cookie recipe calls for 2 1/4 cups of flour per batch if she wants to make 2 /3 a batch of cookies how much flour s
lilavasa [31]
If we have 2+1/4 for a batch and want 2/3rds of that, we multiply (2+1/4) by 1/3 to get 2/3+1/12 (we can just multiply the denominator by 3 to divide by 1/3) = 8/12+1/12=9/12=3/4 ( we get 8/12 by figuring out that 12/3 =4 so we multiply 2/3 by 4/4). Since we need 2/3rds, we then multiply 3/4 by 2 to get 6/3 or 3/2. 
5 0
3 years ago
Read 2 more answers
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