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WARRIOR [948]
3 years ago
8

Sherina wrote and solved the equation.

Mathematics
2 answers:
omeli [17]3 years ago
4 0

Answer:

Sherina should have added 56 to both sides of the equation.

Step-by-step explanation:

To solve this equation: x-56=230 you need to add 56 to both sides of the equation:

x-56 + 56=230 + 56 → x = 286.

Therefore, Sherina should have added 56 to both sides of the equation.

Ilia_Sergeevich [38]3 years ago
4 0

Answer:

Last option: Sherina should have added 56 to both sides of the equation.

Step-by-step explanation:

To solve the equation x-56=230 Sherina needed to solve for the variable "x".

To calculate the value of the variable "x" it is important to remember the Addition property of equality. This states that:

If\ a=b\ then\ a+c=b+c

Therefore, Sherina should have added 56 to both sides of the equation.

The correct procedure is:

x-56+(56)=230+(56)\\x=286

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Answer:

So:

Counting from a given time t = 0min, we know that:

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Well, this will happen in the smallest common multiple of 15, 12 and 10.

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How we find it?

well, in this case is easy.

All the multiples of 10 end with a zero.

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Another way is by calculating:

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Then:

10*12*15/(2*3*5) = 60.

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