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stepan [7]
2 years ago
6

Two siblings' ages have a sum of 64 years. The older sibling was born 6 years before their young sibling.

Mathematics
1 answer:
Elina [12.6K]2 years ago
4 0

Hi!

So we have to make a system of equations here.

Let sibling 1 be O and sibling 2 be Y (for older and younger)

So:

O + Y = 64

O = 64 - Y

(Either one works)

The older sibling is 6 years older.

O = Y + 6

Make everything in terms of Y.

64 - Y = Y + 6

Same to both:

58 = 2y

2y = 58

Divide by 2 on both sides:

y = 29

Since the older sibling is 6 years older:

29 + 6 = 35

Y = 29

O = 35

Let me know if you have any questions.

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If we take the number of Zebras to be x and that of peacocks to be y
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The Cinemania theater showed 108 different movies last year. Of those, 15 movies were action movies. Based on this data, what is
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A reasonable estimate of the probability is equal to 0.1389   or  13.89\%

Step-by-step explanation:

we know that

The probability of an event is the ratio of the size of the event space to the size of the sample space.  

The size of the sample space is the total number of possible outcomes  

The event space is the number of outcomes in the event you are interested in.  

so  

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substitute

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