Add the two numbers in your ratio and divid if from one hundred
This would equal 20
So to find the percentage for the colours as they are time the two ratio number to get 40:60 this is also the percentages.
If you add five more blue parts in to the ratio and leave the red alone you will get 2:8 this would give you a 80% blue part.
So the answer is
5 parts of blue are needed to make the mixture 80% blue.
Answer:
69.333333333333
Step-by-step explanation:
Answer: dy/dt 2y = 4
Explanation:
The differential equation can be found by taking the derivative of y with respect to t of both sides of this equation.
Derivative of y^2 becomes 2y * dy/dt.
4(t+1) can be distributed to equal 4t + 4.
Derivative of 4t + 4 becomes 4.
Therefore, a possible differential equation is dy/dt * 2y = 4. Can check by separating and integrating.
Let x be the number of tickets sold to adults and y the number sold to students:
x + y = 315. But we know that y was double x, then :
y = 2x
Plug the value of y (in the 1st equation) by 2x:
x+ 2x = 315
3x = 315
and x = 105 (which is the number of tickets sold to adults