Answer:
56%
Step-by-step explanation:
9 girls + 5 boys have cameras on
this is 14 out of 25, or 56%
Answer:
f + 3
Step-by-step explanation:
Combine like-terms
4f - 2f - f +3
f + 3
Answer:
No Ms Chen is not correct and the price is $1.99 per pound
Step-by-step explanation:
Ms Chen is not correct because she did the division wrong. She was supposed to divide the price by the pounds but she divided the pounds by the price. The correct way of doing this would be dividing $12.95 by 6.5 which gets you 1.99230769 but since this is money that rounds to $1.99 per pound
The whole story begins at 9:00 AM, so let's make up a quantity called ' T ',
and that'll be the number of hours after 9:00 AM. When we find out what ' T ' is,
we'll just count off that many hours after 9:00 AM and we'll have the answer.
-- The first car started out at 9:00 AM, and drove until the other one caught up
with him. So the first car drove for ' T ' hours.
The first car drove at 55 mph, so he covered ' 55T ' miles.
-- The second car started out 1 hour later, so he only drove for (T - 1) hours.
The second car drove at 75 mph, so he covered ' 75(T - 1) ' miles.
But they both left from the same shop, and they both met at the same place.
So they both traveled the same distance.
(Miles of Car-#1) = (miles of Car-#2)
55 T = 75 (T - 1)
Eliminate the parentheses on the right side"
55 T = 75 T - 75
Add 75 to each side:
55 T + 75 = 75 T
Subtract 55 T from each side:
75 = 20 T
Divide each side by 20 :
75/20 = T
3.75 = T
There you have it. They met 3.75 hours after 9:00 AM.
9:00 AM + 3.75 hours = <u>12:45 PM</u> . . . just in time to stop for lunch together.
Also by the way ...
when the 2nd car caught up, they were 206.25 miles from the shop.
ANSWER
A. 128.7
EXPLANATION
The variance of a binomial distribution is calculated using the formula,
where
is the number of trials and
is the probability of a success and
is the probability of failure.
We just have to substitute the given values into the formula to obtain,
to the nearest tenth.
The correct answer is A.