Answer:
6ab.
Step-by-step explanation:
3 x a x 2 x b
= 3 x 2 x a x b ( because multiplication is commutative, which basically means you can move the numbers and variables anywhere in the expression).
= 6ab ( we leave out the multiplication signs. They are understood.)
.3*1.3 = .39
Hope this helps!
Amount given in the question = $9000
Percentage that needs to be determined = 7.75%
Then
7.75% of $9000 = (7.75/100) * 9000
= 7.75 * 90 dollars
= 697.5 dollars
So 7.75% 0f $9000 is $697.50. I hope the procedure is clear enough for you to understand.So the correct option among all the options given in the question is the last or the fourth option. You can always use this method for solving similar problems in future without requiring any help from outside.
Answer:240 rotations
Step-by-step explanation: 1 rotation/45 seconds * 60 seconds / minute * 60 minutes / hour * 3 hours = 3600*3/45 = 240 rotations
Answer:
18pi
Step-by-step explanation:
Ⓗⓘ ⓣⓗⓔⓡⓔ
Well, if the diameter is 18, the radius is 9.
If he needs edging, he's building a fence-like-structure around the garden which will be the circumference.
The formula for circumference is 2*pi*r
We'd just plug in 9 for r.
2*pi*9=18pi
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