Answer:
cant you only get brainliest by answering a lot of questions?
Step-by-step explanation:
Answer:
The speed of the jet is 347 mph and the speed of the wind is 18 mph.
Step-by-step explanation:
We have the following:
x = the speed of the jet in still air.
y = the speed of the wind
we know that the speed is equal to:
v = d / t
therefore the distance would be:
d = v * t
if we replace with the information of the exercise we have:
3 * (x + y) = 1095
3 * (x - y) = 987
we must solve this system of equations, add both equations and we are left:
3 * x + 3 * y = 1095
3 * x - 3 * y = 987
3 * x + 3 * y + 3 * x - 3 * y = 1095 + 987
6 * x = 2082
x = 2082/6 = 347
now to calculate y, we replace:
3 * (347 + y) = 1095
1041 + 3 * y = 1095
3 * y = 1095 - 1041
y = 54/3 = 18
The speed of the jet is 347 mph and the speed of the wind is 18 mph.
(a) The fraction of books that are fiction is 2/3.
(b) The fraction of books that are non-fiction is 1/3.
To find the fraction of fiction and non-fiction books on a bookshelf:
Given: A bookshelf has 96 books. 64 of the books are fiction and the rest are non-fiction books. (a)Fraction of fiction books =?
(b)Fraction of non-fiction books =?
Now,
As given, we have,
The total number of books on a bookshelf = 96
Out of 96, the total number of fiction books = 64
So,
The remaining number of books = non-fiction books = 96-64 = 32
(a) Fraction of fiction books = fiction books/total books
= 64/96
On simplification,
= 2/3
(b) Fraction of non-fiction books = non-fiction books/total books
= 32/96
= 1/3
Therefore, the fraction of fiction and non-fiction books is 2/3 and 1/3 respectively.
To learn more about fractions, refer:
brainly.com/question/78672?utm_source=android&utm_medium=share&utm_campaign=question
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Carl has two more flips, and we want to know the probability that one and only one of those times it will be jelly side up. Assuming the basic heads/tails 50% probability each flip we have four possible outcomes: P P. P J, J P, J J, (btw P = plain side and J = Jelly side) and two of the four give us the one P wanted, so 2/4 = 50% probability.
*see attachment for diagram
Answer:
37 m
Step-by-step explanation:
First, use trigonometric ratio to find the distance between the top of the shorter silo to the top of the taller silo.
Let the distance between the top of the smaller silo and the top of the taller silo be x.
Thus, we would have:
Tan 30 = opp/adj = x/25
Tan 30 = x/25
Multiply both sides by 25
25*Tan 30 = x
x = 14 m (nearest meter)
The height of the taller silo = height of the smaller silo + x
= 23 m + 14 m
= 37 m
