Answer: 73440 ways
Step-by-step explanation:
Given: The total number of students = 18
Since they are going to elect a class president, a class Vice President, a class secretary, and a class treasurer.
Thus, they are going to elect 4 different positions from class.
By permutation, the number of ways in which these positions can be selected
Hence, there are 73440 ways to select given positions.
Answer:
28
Step-by-step explanation:
Here is the complete question used in answering this question :
Three-fourths of the boats in the marina are white. 4/7 of the remaining boats are blue , and the rest are red . If there are 9red boats, how many boats are in the marina?
We first have to determine the fraction of the boats that are red
1 - ( + )
1 -
1 -
1 - 1
= 9/28
so, 9/28 of the boats are red
let b represent the total number of boats
9/28 x b = 9
to find b, divide both sides of the equation by 28/9
b = 28
b5d₁₆ = 11×16² + 5×16¹ + 13×16⁰
… = 11×(2×8)² + 5×(2×8)¹ + 13×(2×8)⁰
… = 11×4×8² + 5×2×8¹ + 13×8⁰
… = 44×8² + 10×8¹ + 13×8⁰
… = (40 + 4)×8² + (8 + 2)×8¹ + (8 + 5)×8⁰
… = (5×8 + 4)×8² + (1×8 + 2)×8¹ + (1×8 + 5)×8⁰
… = 5×8³ + 4×8² + 1×8² + 2×8¹ + 1×8¹ + 5×8⁰
… = 5×8³ + 5×8² + 3×8¹ + 5×8⁰
… = 5535₈
The volume of a rectangular prism with sides a, b and c is given by:
If a = 7 cm, b = 8 cm and c = 2 cm, we have:
This problem can solve by the rule of three.
330 miles-------------------------15 hours
x--------------------------------------44 hours
x=(330 miles * 44 hours) / 15 hours=968 miles.
answer: the migrating bird flies 968 miles in 44 hours.