Answer:
32
Step-by-step explanation:
the denominators are the same, so just add the two fractions on the right and subtract it from the answer on the left.
3500/7+210/7=3710/7
subtract 3710 from 3742
= 32
Answer:
0.0225
Step-by-step explanation:
GIven two events A and B that are independent (=their occurrence does not depend on the other event), the probability that both events occur is given by the product of the individual probabilities:
where
is the probability that event A occurs
is the probability that event B occurs
In this problem, we can call:
A = the driver get stopped by a red light at the 1st traffic light
B = the driver get stopped by a red light at the 2nd traffic light
The probabilities are
So, the probability that Taylor will get stopped by both the 2 red lights is
Alright so first you want to find out how you take 30% off of $30. The first step is to ask yourself, what's 30% of $30? All you have to do is make the percentage into a decimal like you did and multiply .30 times 30. That gets you 9. So 9 is 30% of $30, but since it said the original 30 was marked down by that much, it means subtract. 30-9=21.
For the second part, you pretty much do the same thing but using the 21 you just got and taking away 20% this time. Same process so .20 times 21=4.2, and take the 4.2 away from 21 to get 21-4.2=16.8.
Convert that to dollars to see that the final price is $16.80.
Just a tip, a lot of people will forget the subtraction part after they find the percentage part. Most of these type questions are two steps like that so don't forget to subtract when needed. Lmk if you still have questions :)
28% of the marbles are green because there is a total of 25 marbles and 7/25 is 0.28. This translates to 28%.
It changes it into negative