When I was 10 my sister was half my age, now I’m 30. How old is my sister?

Mathematics

2 answers:

ivanzaharov [21]3 years ago

8 0

Answer:

Step-by-step explanation:

Georgia [21]3 years ago

5 0

Answer:

25 Years Old

Step-by-step explanation:

If your sister was half of your age when you were 10, this means that your sister was 5 at the time. This also means that your sister is 5 years younger than you. If you are now 30, your sister would be 25 since she is younger by 5 years.

30 - 5 = 25

~Hope this helps!~

You might be interested in

What is the y-intercept of the line y=7?

Maru [420]

Answer:

Step-by-step explanation:

The value of the y-intercept is (0,7)

So the y intercept is 0,7

3 0

3 years ago

What is 33 percent of 400

Eduardwww [97]

<h2>QUESTION</h2>

What is 33% of 400?

<h2>ANSWER AND EXPLANATION</h2>

To find the percent of a number, you have to change the percent into a decimal or a fraction and multiply by the number.

<h3>DECIMAL</h3>

To change a percent into a decimal, remove the percent sign and move the decimal point 2 places to the left.

$33 \% \rightarrow 0.33$

Now that you have your decimal, multiply by 400:

$0.33 \times 400 = 132$

ANSWER = 132

<h3>FRACTION</h3>

To change a percent into a fraction, make the percent number as the numerator(top number) and 100 as the denominator(bottom number) since fractions are out of 100.

$33 \% \rightarrow \frac{33}{100}$