Answer: 30
Step-by-step explanation:
8(3) + 6 = 30
I've been waiting for someone to ask this question. It's one of my favorite questions to answer.
percent means out of 100 so 1% = 1/100 and 40%=40/100 or 1/25
so for percent of a number, 'of' means multiply so 40% of 500= 40/100 times 500 or 20000/100 or 200
if you multiply a fraction by its recipricol (the number fliped upside down) the you will get 1 so if you multiply 1/2 by 2/1 then you will get 1
thus
percent is out of 100 so 1%=1/100 25%=25/100
if you represent 45 out of something as 45/x then you multiply it by the reciprocal of the fraction that is supposed to be equal (1/2 =2/4) then you will get 1
so 45/x times reciprocal of 100/25 then you will get 1/1 or 4500/25x
so you divide to find x and get 180
so 45 is 25% of 180
The following is extra
as stated above 'of' can be taken as multiply so
45 is 25% of 180 can be rewriten as
45=25/100 times 180
but we don't know that 180 is the answer so we replace it with x then solve for x
You can use the equation d=rt
Amy 14.4=40r r=0.36 kilometers/minute
Bill 14.4=20r r= 0.72 kilometers/minute
Amy (0.36 kilometers/minute)(60 seconds/1000 meters)= 0.0216 meters/second
Bill (0.72 kilometers/minute)(60 seconds/1000 meters)=0.0432 meters/second
0.0432-0.0216=0.0216 meters/second faster than Amy
Even numbers greater than 2: 4,6
Total possibilities: 6 (since it is a standard cube)
There are two favorable outcomes out of 6 possible outcomes, so this is written as 2/6, or 1/3. 1/3 of 48 is 16, so 16 is the best prediction for the number of times her will roll an even number that is greater than 2.
