Answer:
volume of the prism=(1/2×9×6)×12
=27×12
=324 cm³
Answer:
i do not understand please explain further
Answer:
Step-by-step explanation:
To solve for x, we need to isolate the x variable.
Given:
Subtract 
from both sides of the equation:
Now, we will create common denominators to simplify.
Step-by-step explanation:
Total students = 3 + 4 + 5 + 3 = 15
Boys = 8
Girls = 7
So total books = 15 x 2 = 30 books
Answer:
15 boys
Step-by-step explanation:
Whatever number one side of the ratio is multiplied by, the other side has to be multiplied by that same number. So, we have to find the number that 4 is multiplied by to get 20. We can represent this as an equation, where the unknown number is x:
4x = 20
Divide both sides of the equation by 4 to find the value of x:
x = 5
4 was multiplied by 5 to get 20.
To find the number of boys, multiply 3 by 5:
3 * 5 = 15
If there are 20 girls, there will be 15 boys.
