3 boys + 8 girls = 11 students
3 boys/ 11 students = x boys /33 students
using cross products
3 * 33 = x*11
divide by 11
99/11 = x
x=9
There are 9 boys
The triangle with side lengths 10", 24", and 26" is a right angle triangle
<u>Explanation:</u>
Given:
Sides of a triangle:
a = 10 in
b = 24 in
c = 26 in
To prove: right angle triangle
Using pythagoras theorm:
(c)² = (a)² + (b)²
(26)² = (10)² + (24)²
676 = 100 + 576
676 = 676
Right hand side is equal to left hand side.
Thus, the triangle with side lengths 10", 24", and 26" is a right angle triangle
Okay I know how to do this, first set it up as
161 X
-----=------
575 100
Then cross multiply
Answer:
Step-by-step explanation:
The formula for determining simple interest is expressed as
I = PRT/100
Where
I represents interest paid on the amount of money borrowed.
P represents the principal or amount of money borrowed.
R represents interest rate
T represents the duration in years.
From the given information,
P = $450
R = 5%
T = 1 year
I = (450 × 5 × 1)/100
I = $22.5
the total amount that she pays for the Soundsystem is
450 + 22.5 = $472.5