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3 years ago

When Janice is 20 years old; her brother is half her age. When Janice is 30 years old; how old is her brother?

Mathematics

2 answers:

Snezhnost [94]3 years ago

7 0

20 years old
Her brother

Ludmilka [50]3 years ago

5 0

When Janice was 20, her brother was 10.

Since the age between them will always be 10 years,

30-10= 20

When Janice is 30, her brother is 20.

I hope this helps!
~cupcake

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<h3>2. what is the probability that the ball chosen is blue ?</h3>

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<h3>3. what is the probability that the ball chosen is yellow ?</h3>

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<h3>4. what is the probability that the ball chosen is green ?</h3>

$\qquad \sf \dashrightarrow \: p(green) = \dfrac{total \: green\: balls}{total \: balls}$

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<h3>5. what is the probability that the ball chosen is not green ?</h3>

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