Answer:
-4/5
Step-by-step explanation:
first use bodmas to evaluate work on brackets then division
If 40% of the students are girls then that means 60% of the students are boys.
First, turn 60% into a decimal.
60% = 0.6
Second, divide by the number of boys.
36 / 0.6 = 60 total students
Third, turn 40% into a decimal.
40% = 0.4
Fourth, multiply by the total number of students.
60 * 0.4 = 24 girls
Best of Luck!
Answer:
Ariel answer is wrong.
Step-by-step explanation:
Given that Ariel had done a Math problem for a triangle with sides
9,15 and 12. She concluded that these sides are not that of a right triangle.
To check whether Ariel is right:
Greater side = 15
Hence greatest angle will be opposite 15
Let us check pythagorean theorem
smaller sides are 9 and 12
Square and add them
9 square +12 square = 81+144 = 225 =15 square
We find that Pythagorus theorem is satisfied
Hence it is concluded that the triangle is right angled and Ariel was wrong