Answer:
10 ml of a 72% solution, 20 ml of a 54% solution
Step-by-step explanation:
x ml - amount of a 72% solution
y ml - amount of a 54% solution

(1)
(1) 2160-72y+54y=1800
y=20
x=30-y=30-20=10
Answer:acfasgsad
Step-by-step explanation:dfafsaf ad a dafaffasfsafafsafsffsfaas
Answer:
93.60 would be the last price while
23.4 would be the subtracted price
Step-by-step explanation:
20 percent move the decimal over 2 places to the right and get 0.2
then multiply 117 by 0.2 and get the last answer
Answer:
Step-by-step explanation:
Area of box = 14^2 = 196 in^2
Radius r of pizza = 12/2 = 6
Area of pizza = πr² = 36π ≈ 113.04 in^2
Answer:
you just add 35 to her bill