20 5/81 in its simplest form is 20 5/81.
20 5/81 originally looks like this ⇒ 1625/81
((20 * 81)+5)/81 = (1620+5)/81 = 1625/81 * this is an improper fraction because the numerator is greater than the denominator. Improper fractions must be converted to proper fractions. It will then become a mixed fraction.
<u> 0020 5/81</u>
81 | 1625
<u>162 </u> * 81 x 2
05
5x-9 = 3x+3
2x-9 = 3
2x = 12
x= 6
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Answer:
28
Step-by-step explanation:
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Answer:
$119520
Step-by-step explanation:
Given: Purchase price of Diamond ring= $12000
Value of ring increase by 32% each year.
First finding number of year between 2012 and 2040, to know the time period of value appreciation.
Time period=
∴ Time period of value appreciation is 28 years.
Now, finding the value of diamond ring increased after 28 years.
Value of ring increased after 28 years= 
∴ Increased value of diamond ring after 28 years= $107520
Next, Value of diamond ring after 28 years= 
Hence, value of diamond ring in 2040 is $119520
4x+3x=7x
18 girls-5%
Total no: of girlsx5/100=18
Total-100x18/5-360 girls
4x+3607x
360-7x-4x
360-3x
x=360/3-120
4x=4x120=480
3x=3x120=360
Total no: of students=480+360-840