rubenhh

6/12= 50%, which means that Lily ate half the ducks. 50% of 12 is 12 divided by 2, so 6. 

Lily ate 6 ducks, and 6 ducks remained.

Type in the numerator then press the "/" (slash) button, then type in your denominator

Example: 1/2 in calculator form is the same as the fraction "numerator 1 over denominator 2".

Basic multiplication. Take out the 1.06 from the parenthesis. 

20000 * 1.06 = 21200

17/52 is already reduced to its simplest form;

This means that there are no numbers that can be divided from both the numerator and the denominator.

Start by multiplying the numbers in the parenthesis, in this case, (-2)2

7 * (-3) * -4

Take the -3 out of parenthesis, it's only there to check your understanding

7 * -3 * -4 = 84

Press the slash / button when using the calculator

The absolute value of a number is positive.

12=w-(7)

12=w-7

w=19

Turn the percent into a decimal so you can multiply it by 200000.

To turn a percent into a decimal, simpy divide by 100. 

2/100=0.02

Multiply.

0.02 * 200000 = 4000

15.000 is the same as 15.

30*15.000=450.000 or 450.

If you divide x by a denominator of 1, that number stays x. (x/1=x)

(0.7/1+0.5/1)-0.5

(0.7+0.5)-0.5

0.12-0.5 = 0.7

-7*1 = -7

A negative multiplied by a positive will stay negative. 

Subtract the change from $20.

$20-0.80=$19.20.

Divide $19.20 by the amount of pens Yolan bought. 

$${\frac{{\mathtt{1\,920}}}{{\mathtt{8}}}} = {\mathtt{240}}$$  

Move the decimal one point, resulting in 2.40

Each pen cost Yolan $2.40 

Add the expense percentages. 

20%+23%+42%= 85%

Subtract the percentage you found from 100%.

100%-85%=15%

This percentage is the amount of money the family saves monthly, in this case, $360.

To find how much money the family makes monthly, divide 100 by 15 and multiply that by $360.

$${\frac{{\mathtt{100}}}{{\mathtt{15}}}}{\mathtt{\,\times\,}}{\mathtt{360}} = {\mathtt{2\,400}}$$

The amount of money the family earns in a month is $2400.