3y - yz = 2z
First separate y from 3y - yz = 2z
3y - yz is the same as y * (3 - z) so...
y (3 - z) = 2z
Now divide both sides by (3 - z)
y = 2z / (3 - z)
The answer is y = 2z / (3 - z), the answer you stated is correct except at the end, it isn't - 2, but - z, and also you should include parenthesis around it. Found this helpful? Give it a Brainiest reward if so.
Answer:
45 girls
Step-by-step explanation:
If 60% of the class is girls then 40% of the class is boys.
30 boys are in the class, meaning that 40% of the class comprises those 30 boys
First, we need the total number of class members: 30/x = 40/100 -> 40x=3000 -> x=3000/40 -> x=75
Now that we know the total class members, at 75, we can calculate the number of girls in the class. You can do this:
0.6*75=45
or
60/100=x/75 and solve for x
Answer:
5
Step-by-step explanation:
(y2-y1)/(x2-x1), when you plug the numbers into the formula, you should get 5
Answer:
he would have spent 10 hours on the piano.
Step-by-step explanation:
every time he practices he practices two more hours on the piano then on the trumpet times that by two and you have your answer
Answer:
It says double, so it means that:
_____ x 2 = 50
In order to find _____, you must reverse the equation.
50 / 2 = _______
This means that:
50 / 2 = 25
So, ______ = 25
