He would have bought 2 small notebooks and 4 large notebooks. because $12×4= $48 and $6* 2 = $12. $48+$12=$60
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The perimeter of the square is given
P = 72 in
The perimeter formula of a square is P = 4 x sides
To find the value of the side, we divide by 4
72 = 4s
4 and 4 cancels out
18 in = side
The area formula of a square is
A = (side)²
= (18)²
= 324 in²
Answer:
$50
Step-by-step explanation:
To get previous prices, divide by what you would have multiplied to get the next price. X*.70 (that’s 30% off)=21. So... 21/.70=X. Repeat for each price change... (((21/.7)/.75)/.8)=$50.
Rate of interest is 6 %
<em><u>Solution:</u></em>
Given in question that,
simple interest = $ 3240
number of years = 9 years
principal sum = $ 6000
To find: interest rate
<em><u>The simple interest is given as:</u></em>
Where, "p" is the principal
"r" is the rate of interest
"n" is the number of years
<em><u>Substituting the values in above formula,</u></em>
Thus rate of interest is 6 %