-48.24 if u want it to be decimal, but its -1206/25 for fraction
Answer:
books.
Step-by-step explanation:
We have been given that Hannah's school hosted a book donation.
Total number of students = 150.
Total number of books donated by all students = b.
Since we know that average is calculated by dividing the sum of the values in the set by their number.


Since we are told that Hannah donated 3 times as many as the average number of books each student donated. So books donated by Hannah will be:

Upon simplifying we will get,

Therefore, Hannah donated
books.
The distance of plane from the origin is 357.14 miles
<u>Explanation:</u>
Given:
distance traveled southwards, y = 600 miles
Distance traveled east of south, z = 250 miles
Angle, θ = 35°
Distance of plane from the origin, x = ?
The figure is attached for reference:
tan θ = Perpendicular / base
tan θ = distance travelled east of south / x
tan 35° = 250 / x
we know,
tan 35° = 0.7
So,

Therefore, the distance of plane from the origin is 357.14 miles