I think 7 of them are girls and the rest are boys and how i got this answer is I took the 28 and divided it by 4 and got 7.
Answer:
120 liters of 60% alcohol solution is needed
Step-by-step explanation:
Let's assume
x liters of 60% alcohol solution is added
so, we get solution as


we are given
40 liters of a 20% alcohol solution is



so, total alcohol solution is

now, we can find total solutions
total solutions is

now, it is making 50% solution
so, we get

now, we can solve for x




So,
120 liters of 60% alcohol solution is needed
The distance across the diamond is 114.6 feet should be the answer
:)
Answer:
Equation in cubed form is x^3+7x^2+7x-15
Step-by-step explanation:
Answer:
153 cups of butter
Step-by-step explanation:
1 pack=34 cups
1 pack(4.5 packs)=34 cups(4.5)
4.5 packs=153 cups of butter