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yulyashka [42]
2 years ago
13

¿cual es la expresion matematica para dos magnitudes que se relacionan de una forma directamente proporcional?

Chemistry
1 answer:
DENIUS [597]2 years ago
3 0

Answer:

4

Explanation:

I guess it says more about the problem

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Select the correct coefficients to balance the reaction given below.<br> __Al + ___O₂ → ____ Al₂ O₃
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Answer:

4Al+3O2→2Al2O3

Explanation:

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2 years ago
Is this true or false? :D
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Explanation:

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At Jim's auto shop, it takes him minutes to do an oil change and minutes to do a tire change. Let be the number of oil changes h
Juli2301 [7.4K]

Answer:

The total time that Jim needs to change x oil changes and y tire changes is less than 180 min.

The time needed for x oil changes is 12 * x.

The time needed for y tire changes is 18 * y.

The total time is the sum of the above times and needs to be less than 180 that is

12 * x + 18 * y < 180 divide both sides of equation by 6

12/6 * x + 18/6*y < 180/6

2*x + 3*y < 30

2*x < 30 - 3*y divide both sides by 2 to get the inequality for x

x < 30/2 - 3/2*y = 15 - 1.5 y < 15 that is x < = 15

2*x + 3*y < 30

3*y < 30 - 2*x divide both sides by 3 to get the inequality for y

y < 30/3 - 2/3 *x = 10 - 2/3*x < 10 that is y < = 10

Also we can write x + y < x+ 3/2 * y < 15.

Explanation:

Jim's can do not more then 5 oil changes and not more then 10 tire changes or all together she can do not more then 15 total of oil and tire changes.

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3 years ago
Give the major force between acetone and chloroform.
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