3 years ago

Which expression are equal to 10×5

Mathematics

2 answers:

Virty [35]3 years ago

8 0

50/5 equals 10........

telo118 [61]3 years ago

7 0

Hi , 10x5 equals to 50 , some equivalent expressions are 39+7+4 72-30+8

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The sum of the ages of Mr Lin and his son Ethan is 38 years. In three years' time, Mr Lin will be three times as old as his son.

Sati [7]

Answer:

Mr.Lin's present age is 30 years now. His son is 8 years old now.

Step-by-step explanation:

Let L = Mr.Lin's present age,

S = his son's present age.

First equation is

L + S = 38. (1)

The second equation is

L + 3 = 3*(S+3) (2) ("In three years' time, Mr.Lin will be three times as old as his son.")

From (1), express S = 38-L and substitute it into (2). You will get

L + 3 = 3*((38-L)+3), or

L + 3 = 114 - 3L + 9,

4L = 114 + 9 - 3,

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Answer:

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3 years ago

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$P(event)=\frac{number\text{ of desired outcome}}{number\text{ of possible outcome}}$

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