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Vitek1552 [10]
4 years ago
7

I don't get 7/8n-3=5/8n+12??

Mathematics
2 answers:
Natali [406]4 years ago
5 0
Hey there, subtract 5/8n from both sides, 7/8n-3-5/8n+12-5/8n=1/4n-3=12, add 3 to both sides, 1/4n-3+3=12+3=1/4n=15, multiply both sides by 4, 4*1/4n=4*15, 4*15=60. So, n=60
stepan [7]4 years ago
4 0
7/8n - 3 = 5/8n + 12
(7n)/8 - 3 = (5n)/8 + 12
7n - 24 = 5n + 96
7n = 5n + 96 + 24
7n = 5n + 120
7n - 5n = 120
2n = 120
n = 120/2
n = 60

The answer is: n = 60
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The costs of different weights of onions sold at a grocery store are shown in the table
lana66690 [7]

Answer:

<h2>Independent variable: Weight of Onions.</h2><h2>Dependent variable: Total Cost.</h2>

Step-by-step explanation:

The given table is about the weight of onions in pounds and the total cost.

If you think this through, you would notice that the total cost depends on the number of pounds of onions. That means the independent variable is Weight of Onions and the dependent variable is the Total Cost.

So, to put it in a sentence: The weight of onions determines the total cost.

8 0
3 years ago
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Please someone solve this problem <br>I really need answers ​
yulyashka [42]

Answer:

x = 50°

y = 50°

z = 80°

Step-by-step explanation:

working out x:

angles on a straight line add up to 180°

x + 130° = 180°

subtract 130 on both sides

x = 180° - 130°

x = 50°

working out y:

two vertical lines means that both sides are equal, so both angles are also equal (it's an isosceles triangle). This means that y is the same angle as x = 50°

y = 50°

working out z:

the sum of a triangle add up to 180°

add up the angles of x and y and equate to 180°

50 + 50 + z = 180

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subtract 100 on both sides

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8 0
2 years ago
Add. (6x^2-2x)+(5x-7)
dolphi86 [110]

Answer:

6x^2 + 3x - 7

Step-by-step explanation:

  • 6x^2 - 2x + 5x -7
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it's easy..

8 0
3 years ago
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maxonik [38]

Answer:

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Step-by-step explanation:

3 0
4 years ago
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xeze [42]

Answer:

Yes

Step-by-step explanation:

60x means 60*x.

When there is nothing between a number and variable it means multiplication.

5 0
2 years ago
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